31625612012 has 6 divisors (see below), whose sum is σ = 55344821028. Its totient is φ = 15812806004.

The previous prime is 31625611999. The next prime is 31625612021. The reversal of 31625612012 is 21021652613.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3953201498 + ... + 3953201505.

It is an arithmetic number, because the mean of its divisors is an integer number (9224136838).

Almost surely, 2^31625612012 is an apocalyptic number.

It is an amenable number.

31625612012 is a deficient number, since it is larger than the sum of its proper divisors (23719209016).

31625612012 is a wasteful number, since it uses less digits than its factorization.

31625612012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7906403007 (or 7906403005 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 31625612012 in words is "thirty-one billion, six hundred twenty-five million, six hundred twelve thousand, twelve".