31457646056 has 32 divisors (see below), whose sum is σ = 64467290880. Its totient is φ = 14326060800.

The previous prime is 31457646041. The next prime is 31457646061. The reversal of 31457646056 is 65064675413.

It is a self number, because there is not a number n which added to its sum of digits gives 31457646056.

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 7 ways as a sum of consecutive naturals, for example, 3726530 + ... + 3734961.

It is an arithmetic number, because the mean of its divisors is an integer number (2014602840).

Almost surely, 2^31457646056 is an apocalyptic number.

It is an amenable number.

31457646056 is an abundant number, since it is smaller than the sum of its proper divisors (33009644824).

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

31457646056 is a wasteful number, since it uses less digits than its factorization.

31457646056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461545 (or 7461541 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 31457646056 in words is "thirty-one billion, four hundred fifty-seven million, six hundred forty-six thousand, fifty-six".