31594381316 has 6 divisors (see below), whose sum is σ = 55290167310. Its totient is φ = 15797190656.

The previous prime is 31594381309. The next prime is 31594381337. The reversal of 31594381316 is 61318349513.

It can be written as a sum of positive squares in only one way, i.e., 16045288900 + 15549092416 = 126670^2 + 124696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949297661 + ... + 3949297668.

It is an arithmetic number, because the mean of its divisors is an integer number (9215027885).

Almost surely, 2^31594381316 is an apocalyptic number.

It is an amenable number.

31594381316 is a deficient number, since it is larger than the sum of its proper divisors (23695785994).

31594381316 is a wasteful number, since it uses less digits than its factorization.

31594381316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898595333 (or 7898595331 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The spelling of 31594381316 in words is "thirty-one billion, five hundred ninety-four million, three hundred eighty-one thousand, three hundred sixteen".