316640878831 has 2 divisors, whose sum is σ = 316640878832. Its totient is φ = 316640878830.

The previous prime is 316640878747. The next prime is 316640878843. The reversal of 316640878831 is 138878046613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 316640878831 - 2¹⁵ = 316640846063 is a prime.

It is a super-2 number, since 2×316640878831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316640878861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158320439415 + 158320439416.

It is an arithmetic number, because the mean of its divisors is an integer number (158320439416).

Almost surely, 2^316640878831 is an apocalyptic number.

316640878831 is a deficient number, since it is larger than the sum of its proper divisors (1).

316640878831 is an equidigital number, since it uses as much as digits as its factorization.

316640878831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 316640878831 in words is "three hundred sixteen billion, six hundred forty million, eight hundred seventy-eight thousand, eight hundred thirty-one".