57827115538 has 4 divisors (see below), whose sum is σ = 86740673310. Its totient is φ = 28913557768.

The previous prime is 57827115523. The next prime is 57827115539. The reversal of 57827115538 is 83551172875.

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., 30355047529 + 27472068009 = 174227^2 + 165747^2 .

It is not an unprimeable number, because it can be changed into a prime (57827115539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14456778883 + ... + 14456778886.

Almost surely, 2^57827115538 is an apocalyptic number.

57827115538 is a deficient number, since it is larger than the sum of its proper divisors (28913557772).

57827115538 is a wasteful number, since it uses less digits than its factorization.

57827115538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28913557771.

The product of its digits is 2352000, while the sum is 52.

The spelling of 57827115538 in words is "fifty-seven billion, eight hundred twenty-seven million, one hundred fifteen thousand, five hundred thirty-eight".