31682976972 has 24 divisors (see below), whose sum is σ = 74028654336. Its totient is φ = 10546462608.

The previous prime is 31682976967. The next prime is 31682976991. The reversal of 31682976972 is 27967928613.

It is a super-2 number, since 2×31682976972² (a number of 22 digits) contains 22 as substring.

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, 1807128 + ... + 1824575.

It is an arithmetic number, because the mean of its divisors is an integer number (3084527264).

Almost surely, 2^31682976972 is an apocalyptic number.

It is an amenable number.

31682976972 is an abundant number, since it is smaller than the sum of its proper divisors (42345677364).

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

31682976972 is a wasteful number, since it uses less digits than its factorization.

31682976972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632437 (or 3632435 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 60.

The spelling of 31682976972 in words is "thirty-one billion, six hundred eighty-two million, nine hundred seventy-six thousand, nine hundred seventy-two".