31671737750664 has 96 divisors (see below), whose sum is σ = 93913407469440. Its totient is φ = 9562848220800.

The previous prime is 31671737750629. The next prime is 31671737750671. The reversal of 31671737750664 is 46605773717613.

It is a happy number.

31671737750664 is a `hidden beast` number, since 3 + 1 + 67 + 1 + 7 + 3 + 7 + 7 + 506 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71963952 + ... + 72402719.

It is an arithmetic number, because the mean of its divisors is an integer number (978264661140).

Almost surely, 2^{31671737750664} is an apocalyptic number.

It is an amenable number.

31671737750664 is an abundant number, since it is smaller than the sum of its proper divisors (62241669718776).

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

31671737750664 is a wasteful number, since it uses less digits than its factorization.

31671737750664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144366971 (or 144366964 counting only the distinct ones).

The product of its (nonzero) digits is 93350880, while the sum is 63.

The spelling of 31671737750664 in words is "thirty-one trillion, six hundred seventy-one billion, seven hundred thirty-seven million, seven hundred fifty thousand, six hundred sixty-four".