31612745012 has 48 divisors (see below), whose sum is σ = 59932535040. Its totient is φ = 14533373952.

The previous prime is 31612744997. The next prime is 31612745033. The reversal of 31612745012 is 21054721613.

It is a self number, because there is not a number n which added to its sum of digits gives 31612745012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1790564 + ... + 1808132.

It is an arithmetic number, because the mean of its divisors is an integer number (1248594480).

Almost surely, 2^31612745012 is an apocalyptic number.

It is an amenable number.

31612745012 is a deficient number, since it is larger than the sum of its proper divisors (28319790028).

31612745012 is a wasteful number, since it uses less digits than its factorization.

31612745012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200 (or 18198 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 31612745012 in words is "thirty-one billion, six hundred twelve million, seven hundred forty-five thousand, twelve".