Found with PFGW Version 3.7.5

787^9464-9464^787 is 2-PRP! (15.1426s+0.0013s)
787^9464-9464^787 is 3-PRP! (14.7726s+0.0013s)
787^9464-9464^787 is 5-PRP! (15.0577s+0.0025s)
787^9464-9464^787 is 7-PRP! (14.7118s+0.0013s)
787^9464-9464^787 is 11-PRP! (14.7923s+0.0011s)

Primality testing 787^9464-9464^787 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 17, base 8+sqrt(17)
Calling N-1 BLS with factored part 0.01% and helper 0.01% (0.05% proof)
787^9464-9464^787 is Fermat and Lucas PRP! (73.0025s+0.0021s)

To be completed...