31631276688 has 40 divisors (see below), whose sum is σ = 89142690336. Its totient is φ = 9585235200.

The previous prime is 31631276687. The next prime is 31631276713. The reversal of 31631276688 is 88667213613.

It is a self number, because there is not a number n which added to its sum of digits gives 31631276688.

It is not an unprimeable number, because it can be changed into a prime (31631276687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29953333 + ... + 29954388.

Almost surely, 2^31631276688 is an apocalyptic number.

It is an amenable number.

31631276688 is an abundant number, since it is smaller than the sum of its proper divisors (57511413648).

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

31631276688 is a wasteful number, since it uses less digits than its factorization.

31631276688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59907743 (or 59907737 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The spelling of 31631276688 in words is "thirty-one billion, six hundred thirty-one million, two hundred seventy-six thousand, six hundred eighty-eight".