57681868 has 6 divisors (see below), whose sum is σ = 100943276. Its totient is φ = 28840932.

The previous prime is 57681857. The next prime is 57681887. The reversal of 57681868 is 86818675.

57681868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7210230 + ... + 7210237.

Almost surely, 2^57681868 is an apocalyptic number.

It is an amenable number.

57681868 is a deficient number, since it is larger than the sum of its proper divisors (43261408).

57681868 is a wasteful number, since it uses less digits than its factorization.

57681868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14420471 (or 14420469 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 57681868 is about 7594.8579973558. The cubic root of 57681868 is about 386.3786364029.

The spelling of 57681868 in words is "fifty-seven million, six hundred eighty-one thousand, eight hundred sixty-eight".