680315795731 has 32 divisors (see below), whose sum is σ = 806782269888. Its totient is φ = 565539632640.

The previous prime is 680315795683. The next prime is 680315795821. The reversal of 680315795731 is 137597513086.

It is a cyclic number.

It is not a de Polignac number, because 680315795731 - 2³⁹ = 130559981843 is a prime.

It is a super-2 number, since 2×680315795731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680315795431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6803065 + ... + 6902341.

It is an arithmetic number, because the mean of its divisors is an integer number (25211945934).

Almost surely, 2^680315795731 is an apocalyptic number.

680315795731 is a deficient number, since it is larger than the sum of its proper divisors (126466474157).

680315795731 is a wasteful number, since it uses less digits than its factorization.

680315795731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99751.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 680315795731 in words is "six hundred eighty billion, three hundred fifteen million, seven hundred ninety-five thousand, seven hundred thirty-one".