57787904939 has 16 divisors (see below), whose sum is σ = 61065432480. Its totient is φ = 54685816416.

The previous prime is 57787904927. The next prime is 57787904969. The reversal of 57787904939 is 93940978775.

It is not a de Polignac number, because 57787904939 - 2⁸ = 57787904683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57787904969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6944009 + ... + 6952325.

It is an arithmetic number, because the mean of its divisors is an integer number (3816589530).

Almost surely, 2^57787904939 is an apocalyptic number.

57787904939 is a deficient number, since it is larger than the sum of its proper divisors (3277527541).

57787904939 is an equidigital number, since it uses as much as digits as its factorization.

57787904939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387 (or 9349 counting only the distinct ones).

The product of its (nonzero) digits is 120022560, while the sum is 68.

The spelling of 57787904939 in words is "fifty-seven billion, seven hundred eighty-seven million, nine hundred four thousand, nine hundred thirty-nine".