57138021076 has 6 divisors (see below), whose sum is σ = 99991536890. Its totient is φ = 28569010536.

The previous prime is 57138021053. The next prime is 57138021077. The reversal of 57138021076 is 67012083175.

It can be written as a sum of positive squares in only one way, i.e., 30397922500 + 26740098576 = 174350^2 + 163524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57138021077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7142252631 + ... + 7142252638.

Almost surely, 2^57138021076 is an apocalyptic number.

It is an amenable number.

57138021076 is a deficient number, since it is larger than the sum of its proper divisors (42853515814).

57138021076 is a wasteful number, since it uses less digits than its factorization.

57138021076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14284505273 (or 14284505271 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 57138021076 in words is "fifty-seven billion, one hundred thirty-eight million, twenty-one thousand, seventy-six".