31989924004680 has 96 divisors (see below), whose sum is σ = 104192779050360. Its totient is φ = 8512141701120.

The previous prime is 31989924004637. The next prime is 31989924004691. The reversal of 31989924004680 is 8640042998913.

31989924004680 is a `hidden beast` number, since 3 + 1 + 9 + 89 + 92 + 4 + 0 + 0 + 468 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22563317007396 + 9426606997284 = 4750086^2 + 3070278^2 .

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, 96212457 + ... + 96544376.

Almost surely, 2^{31989924004680} is an apocalyptic number.

31989924004680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31989924004680 is an abundant number, since it is smaller than the sum of its proper divisors (72202855045680).

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

31989924004680 is a wasteful number, since it uses less digits than its factorization.

31989924004680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192757311 (or 192757304 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 31989924004680 in words is "thirty-one trillion, nine hundred eighty-nine billion, nine hundred twenty-four million, four thousand, six hundred eighty".