31377447052 has 12 divisors (see below), whose sum is σ = 62754894160. Its totient is φ = 13447477296.

The previous prime is 31377447047. The next prime is 31377447091. The reversal of 31377447052 is 25074477313.

31377447052 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560311527 + ... + 560311582.

Almost surely, 2^31377447052 is an apocalyptic number.

It is an amenable number.

31377447052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31377447052 is a wasteful number, since it uses less digits than its factorization.

31377447052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120623120 (or 1120623118 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 31377447052 in words is "thirty-one billion, three hundred seventy-seven million, four hundred forty-seven thousand, fifty-two".