31974117336 has 64 divisors (see below), whose sum is σ = 101505139200. Its totient is φ = 9135461664.

The previous prime is 31974117257. The next prime is 31974117337. The reversal of 31974117336 is 63371147913.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31974117291 and 31974117300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31974117337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10571940 + ... + 10574963.

It is an arithmetic number, because the mean of its divisors is an integer number (1586017800).

Almost surely, 2^31974117336 is an apocalyptic number.

31974117336 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31974117336 is an abundant number, since it is smaller than the sum of its proper divisors (69531021864).

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

31974117336 is a wasteful number, since it uses less digits than its factorization.

31974117336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21146925 (or 21146915 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The spelling of 31974117336 in words is "thirty-one billion, nine hundred seventy-four million, one hundred seventeen thousand, three hundred thirty-six".