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We present new discoveries and results from long-term timing of 72 pulsarsdiscovered in the Arecibo PALFA survey, including precise determination ofastrometric and spin parameters, and flux density and scatter broadeningmeasurements at 1.4 GHz. Notable discoveries include two young pulsars(characteristic ages $\sim$30 kyr) with no apparent supernova remnantassociations, three mode changing, 12 nulling and two intermittent pulsars. Wedetected eight glitches in five pulsars. Among them is PSR J1939+2609, anapparently old pulsar (characteristic age $\sim$1 Gy), and PSR J1954+2529,which likely belongs to a newly-emerging class of binary pulsars. The latter isthe only pulsar among the 72 that is clearly not isolated: a non-recycledneutron star with a 931-ms spin period in an eccentric ($e\,=\,0.114$) wide($P_b\,=\,82.7\,$d) orbit with a companion of undetermined nature having aminimum mass of $\sim0.6\,M_{\odot}$. Since operations at Arecibo ceased in2020 August, we give a final tally of PALFA sky coverage, and compare its 207pulsar discoveries to the known population. On average, they are 50% moredistant than other Galactic plane radio pulsars; PALFA millisecond pulsars(MSP) have twice the dispersion measure per unit spin period than the knownpopulation of MSP in the Plane. The four intermittent pulsars discovered byPALFA more than double the population of such objects, which should help toimprove our understanding of pulsar magnetosphere physics. The statistics forthese, RRATS, and nulling pulsars suggest that there are many more of theseobjects in the Galaxy than was previously thought.

Study of 72 pulsars discovered in the PALFA survey: Timing analysis, glitch activity, emission variability, and a pulsar in an eccentric binary