57077861800 has 48 divisors (see below), whose sum is σ = 132792421500. Its totient is φ = 22816281600.

The previous prime is 57077861779. The next prime is 57077861809. The reversal of 57077861800 is 816877075.

It can be written as a sum of positive squares in 6 ways, for example, as 18693999076 + 38383862724 = 136726^2 + 195918^2 .

It is not an unprimeable number, because it can be changed into a prime (57077861809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217680 + ... + 401920.

Almost surely, 2^57077861800 is an apocalyptic number.

57077861800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57077861800 is an abundant number, since it is smaller than the sum of its proper divisors (75714559700).

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

57077861800 is a wasteful number, since it uses less digits than its factorization.

57077861800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185806 (or 185797 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 57077861800 in words is "fifty-seven billion, seventy-seven million, eight hundred sixty-one thousand, eight hundred".