317765978701 has 2 divisors, whose sum is σ = 317765978702. Its totient is φ = 317765978700.

The previous prime is 317765978693. The next prime is 317765978707. The reversal of 317765978701 is 107879567713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220852062601 + 96913916100 = 469949^2 + 311310^2 .

It is a cyclic number.

It is not a de Polignac number, because 317765978701 - 2³ = 317765978693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317765978701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317765978707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158882989350 + 158882989351.

It is an arithmetic number, because the mean of its divisors is an integer number (158882989351).

Almost surely, 2^317765978701 is an apocalyptic number.

It is an amenable number.

317765978701 is a deficient number, since it is larger than the sum of its proper divisors (1).

317765978701 is an equidigital number, since it uses as much as digits as its factorization.

317765978701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15558480, while the sum is 61.

The spelling of 317765978701 in words is "three hundred seventeen billion, seven hundred sixty-five million, nine hundred seventy-eight thousand, seven hundred one".