3172916931988 has 24 divisors (see below), whose sum is σ = 5577998648040. Its totient is φ = 1579206850560.

The previous prime is 3172916931979. The next prime is 3172916931991. The reversal of 3172916931988 is 8891396192713.

It can be written as a sum of positive squares in 4 ways, for example, as 1768947880324 + 1403969051664 = 1330018^2 + 1184892^2 .

It is a super-2 number, since 2×3172916931988² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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, 2862148 + ... + 3812836.

It is an arithmetic number, because the mean of its divisors is an integer number (232416610335).

Almost surely, 2^{3172916931988} is an apocalyptic number.

It is an amenable number.

3172916931988 is a deficient number, since it is larger than the sum of its proper divisors (2405081716052).

3172916931988 is a wasteful number, since it uses less digits than its factorization.

3172916931988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954507 (or 954505 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 67.

The spelling of 3172916931988 in words is "three trillion, one hundred seventy-two billion, nine hundred sixteen million, nine hundred thirty-one thousand, nine hundred eighty-eight".