31680522849492 has 72 divisors (see below), whose sum is σ = 87362180025120. Its totient is φ = 9600077315520.

The previous prime is 31680522849463. The next prime is 31680522849553. The reversal of 31680522849492 is 29494822508613.

31680522849492 is a `hidden beast` number, since 3 + 1 + 6 + 8 + 0 + 52 + 2 + 8 + 494 + 92 = 666.

It is a super-2 number, since 2×31680522849492² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 60302298 + ... + 60825390.

It is an arithmetic number, because the mean of its divisors is an integer number (1213363611460).

Almost surely, 2^{31680522849492} is an apocalyptic number.

It is an amenable number.

31680522849492 is an abundant number, since it is smaller than the sum of its proper divisors (55681657175628).

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

31680522849492 is a wasteful number, since it uses less digits than its factorization.

31680522849492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676053 (or 676048 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 63.

The spelling of 31680522849492 in words is "thirty-one trillion, six hundred eighty billion, five hundred twenty-two million, eight hundred forty-nine thousand, four hundred ninety-two".