57198775887 has 96 divisors (see below), whose sum is σ = 94650716160. Its totient is φ = 34230924000.

The previous prime is 57198775883. The next prime is 57198775901. The reversal of 57198775887 is 78857789175.

It is not a de Polignac number, because 57198775887 - 2² = 57198775883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57198775883) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 132711562 + ... + 132711992.

It is an arithmetic number, because the mean of its divisors is an integer number (985944960).

Almost surely, 2^57198775887 is an apocalyptic number.

57198775887 is a deficient number, since it is larger than the sum of its proper divisors (37451940273).

57198775887 is a wasteful number, since it uses less digits than its factorization.

57198775887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 955 counting only the distinct ones).

The product of its digits is 276595200, while the sum is 72.

The spelling of 57198775887 in words is "fifty-seven billion, one hundred ninety-eight million, seven hundred seventy-five thousand, eight hundred eighty-seven".