57766738916 has 6 divisors (see below), whose sum is σ = 101091793110. Its totient is φ = 28883369456.

The previous prime is 57766738907. The next prime is 57766738933. The reversal of 57766738916 is 61983766775.

It can be written as a sum of positive squares in only one way, i.e., 31292194816 + 26474544100 = 176896^2 + 162710^2 .

It is a super-2 number, since 2×57766738916² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7220842361 + ... + 7220842368.

It is an arithmetic number, because the mean of its divisors is an integer number (16848632185).

Almost surely, 2^57766738916 is an apocalyptic number.

It is an amenable number.

57766738916 is a deficient number, since it is larger than the sum of its proper divisors (43325054194).

57766738916 is a wasteful number, since it uses less digits than its factorization.

57766738916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14441684733 (or 14441684731 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 65.

The spelling of 57766738916 in words is "fifty-seven billion, seven hundred sixty-six million, seven hundred thirty-eight thousand, nine hundred sixteen".