57115271986 has 4 divisors (see below), whose sum is σ = 85672907982. Its totient is φ = 28557635992.

The previous prime is 57115271971. The next prime is 57115272041. The reversal of 57115271986 is 68917251175.

57115271986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43256096361 + 13859175625 = 207981^2 + 117725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14278817995 + ... + 14278817998.

Almost surely, 2^57115271986 is an apocalyptic number.

57115271986 is a deficient number, since it is larger than the sum of its proper divisors (28557635996).

57115271986 is a wasteful number, since it uses less digits than its factorization.

57115271986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28557635995.

The product of its digits is 1058400, while the sum is 52.

The spelling of 57115271986 in words is "fifty-seven billion, one hundred fifteen million, two hundred seventy-one thousand, nine hundred eighty-six".