31539676072 has 32 divisors (see below), whose sum is σ = 63213151680. Its totient is φ = 14716282240.

The previous prime is 31539676067. The next prime is 31539676097. The reversal of 31539676072 is 27067693513.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082838 + ... + 2097925.

It is an arithmetic number, because the mean of its divisors is an integer number (1975410990).

Almost surely, 2^31539676072 is an apocalyptic number.

It is an amenable number.

31539676072 is an abundant number, since it is smaller than the sum of its proper divisors (31673475608).

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

31539676072 is a wasteful number, since it uses less digits than its factorization.

31539676072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180833 (or 4180829 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 49.

The spelling of 31539676072 in words is "thirty-one billion, five hundred thirty-nine million, six hundred seventy-six thousand, seventy-two".