31504694960 has 40 divisors (see below), whose sum is σ = 77103599280. Its totient is φ = 11938620672.

The previous prime is 31504694927. The next prime is 31504694989. The reversal of 31504694960 is 6949640513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10361867 + ... + 10364906.

It is an arithmetic number, because the mean of its divisors is an integer number (1927589982).

Almost surely, 2^31504694960 is an apocalyptic number.

It is an amenable number.

31504694960 is an abundant number, since it is smaller than the sum of its proper divisors (45598904320).

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

31504694960 is a wasteful number, since it uses less digits than its factorization.

31504694960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20726805 (or 20726799 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 31504694960 in words is "thirty-one billion, five hundred four million, six hundred ninety-four thousand, nine hundred sixty".