57921107877 has 12 divisors (see below), whose sum is σ = 83665908300. Its totient is φ = 38613109248.

The previous prime is 57921107873. The next prime is 57921107911. The reversal of 57921107877 is 77870112975.

It can be written as a sum of positive squares in 2 ways, for example, as 13642006401 + 44279101476 = 116799^2 + 210426^2 .

It is not a de Polignac number, because 57921107877 - 2² = 57921107873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57921107873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679749 + ... + 760197.

It is an arithmetic number, because the mean of its divisors is an integer number (6972159025).

Almost surely, 2^57921107877 is an apocalyptic number.

It is an amenable number.

57921107877 is a deficient number, since it is larger than the sum of its proper divisors (25744800423).

57921107877 is a wasteful number, since it uses less digits than its factorization.

57921107877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160452 (or 160449 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 54.

The spelling of 57921107877 in words is "fifty-seven billion, nine hundred twenty-one million, one hundred seven thousand, eight hundred seventy-seven".