31608040804 has 12 divisors (see below), whose sum is σ = 55317323628. Its totient is φ = 15803091200.

The previous prime is 31608040787. The next prime is 31608040861. The reversal of 31608040804 is 40804080613.

It can be written as a sum of positive squares in 2 ways, for example, as 19698683904 + 11909356900 = 140352^2 + 109130^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31608040804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152737 + ... + 294184.

It is an arithmetic number, because the mean of its divisors is an integer number (4609776969).

Almost surely, 2^31608040804 is an apocalyptic number.

It is an amenable number.

31608040804 is a deficient number, since it is larger than the sum of its proper divisors (23709282824).

31608040804 is a wasteful number, since it uses less digits than its factorization.

31608040804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464606 (or 464604 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 31608040804 in words is "thirty-one billion, six hundred eight million, forty thousand, eight hundred four".