31374789164 has 48 divisors (see below), whose sum is σ = 58118860800. Its totient is φ = 14789913600.

The previous prime is 31374789157. The next prime is 31374789181. The reversal of 31374789164 is 46198747313.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 3423989 + ... + 3433139.

It is an arithmetic number, because the mean of its divisors is an integer number (1210809600).

Almost surely, 2^31374789164 is an apocalyptic number.

It is an amenable number.

31374789164 is a deficient number, since it is larger than the sum of its proper divisors (26744071636).

31374789164 is a wasteful number, since it uses less digits than its factorization.

31374789164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9710 (or 9708 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 53.

The spelling of 31374789164 in words is "thirty-one billion, three hundred seventy-four million, seven hundred eighty-nine thousand, one hundred sixty-four".