57947868585 has 48 divisors (see below), whose sum is σ = 107754978240. Its totient is φ = 29839803840.

The previous prime is 57947868551. The next prime is 57947868653. The reversal of 57947868585 is 58586874975.

57947868585 is a `hidden beast` number, since 5 + 79 + 478 + 6 + 8 + 5 + 85 = 666.

It is not a de Polignac number, because 57947868585 - 2⁶ = 57947868521 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 787071 + ... + 857540.

It is an arithmetic number, because the mean of its divisors is an integer number (2244895380).

Almost surely, 2^57947868585 is an apocalyptic number.

It is an amenable number.

57947868585 is a deficient number, since it is larger than the sum of its proper divisors (49807109655).

57947868585 is a wasteful number, since it uses less digits than its factorization.

57947868585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644660 (or 1644648 counting only the distinct ones).

The product of its digits is 677376000, while the sum is 72.

The spelling of 57947868585 in words is "fifty-seven billion, nine hundred forty-seven million, eight hundred sixty-eight thousand, five hundred eighty-five".