31339674220864 has 28 divisors (see below), whose sum is σ = 62189867148084. Its totient is φ = 15669786435584.

The previous prime is 31339674220859. The next prime is 31339674220891. The reversal of 31339674220864 is 46802247693313.

It can be written as a sum of positive squares in 2 ways, for example, as 29709476409600 + 1630197811264 = 5450640^2 + 1276792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31339674220799 and 31339674220808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26382894 + ... + 27545170.

Almost surely, 2^{31339674220864} is an apocalyptic number.

It is an amenable number.

31339674220864 is a deficient number, since it is larger than the sum of its proper divisors (30850192927220).

31339674220864 is a wasteful number, since it uses less digits than its factorization.

31339674220864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583602 (or 1583592 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 58.

The spelling of 31339674220864 in words is "thirty-one trillion, three hundred thirty-nine billion, six hundred seventy-four million, two hundred twenty thousand, eight hundred sixty-four".