31379537512 has 64 divisors (see below), whose sum is σ = 60656169600. Its totient is φ = 15213112320.

The previous prime is 31379537479. The next prime is 31379537531. The reversal of 31379537512 is 21573597313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13659948 + ... + 13662244.

It is an arithmetic number, because the mean of its divisors is an integer number (947752650).

Almost surely, 2^31379537512 is an apocalyptic number.

It is an amenable number.

31379537512 is a deficient number, since it is larger than the sum of its proper divisors (29276632088).

31379537512 is a wasteful number, since it uses less digits than its factorization.

31379537512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746 (or 2742 counting only the distinct ones).

The product of its digits is 595350, while the sum is 46.

The spelling of 31379537512 in words is "thirty-one billion, three hundred seventy-nine million, five hundred thirty-seven thousand, five hundred twelve".