31080615968 has 24 divisors (see below), whose sum is σ = 61194951468. Its totient is φ = 15539041024.

The previous prime is 31080615953. The next prime is 31080616031. The reversal of 31080615968 is 86951608013.

It can be written as a sum of positive squares in 2 ways, for example, as 20024514064 + 11056101904 = 141508^2 + 105148^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453530 + ... + 517542.

Almost surely, 2^31080615968 is an apocalyptic number.

It is an amenable number.

31080615968 is a deficient number, since it is larger than the sum of its proper divisors (30114335500).

31080615968 is a wasteful number, since it uses less digits than its factorization.

31080615968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79196 (or 79188 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 31080615968 in words is "thirty-one billion, eighty million, six hundred fifteen thousand, nine hundred sixty-eight".