31604766033172 has 12 divisors (see below), whose sum is σ = 58219305850720. Its totient is φ = 14970678647256.

The previous prime is 31604766033149. The next prime is 31604766033317. The reversal of 31604766033172 is 27133066740613.

It is a super-2 number, since 2×31604766033172² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207926092248 + ... + 207926092399.

Almost surely, 2^{31604766033172} is an apocalyptic number.

It is an amenable number.

31604766033172 is a deficient number, since it is larger than the sum of its proper divisors (26614539817548).

31604766033172 is a wasteful number, since it uses less digits than its factorization.

31604766033172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415852184670 (or 415852184668 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 31604766033172 in words is "thirty-one trillion, six hundred four billion, seven hundred sixty-six million, thirty-three thousand, one hundred seventy-two".