31812374672 has 40 divisors (see below), whose sum is σ = 66401375040. Its totient is φ = 14677407360.

The previous prime is 31812374651. The next prime is 31812374689. The reversal of 31812374672 is 27647321813.

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 7 ways as a sum of consecutive naturals, for example, 592229 + ... + 643707.

It is an arithmetic number, because the mean of its divisors is an integer number (1660034376).

Almost surely, 2^31812374672 is an apocalyptic number.

It is an amenable number.

31812374672 is an abundant number, since it is smaller than the sum of its proper divisors (34589000368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31812374672 is a wasteful number, since it uses less digits than its factorization.

31812374672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54471 (or 54465 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The spelling of 31812374672 in words is "thirty-one billion, eight hundred twelve million, three hundred seventy-four thousand, six hundred seventy-two".