57216862648 has 32 divisors (see below), whose sum is σ = 117735327360. Its totient is φ = 25851923680.

The previous prime is 57216862639. The next prime is 57216862721. The reversal of 57216862648 is 84626861275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931986 + ... + 1961377.

It is an arithmetic number, because the mean of its divisors is an integer number (3679228980).

Almost surely, 2^57216862648 is an apocalyptic number.

It is an amenable number.

57216862648 is an abundant number, since it is smaller than the sum of its proper divisors (60518464712).

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

57216862648 is a wasteful number, since it uses less digits than its factorization.

57216862648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893547 (or 3893543 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 57216862648 in words is "fifty-seven billion, two hundred sixteen million, eight hundred sixty-two thousand, six hundred forty-eight".