57187866477 has 16 divisors (see below), whose sum is σ = 87594942080. Its totient is φ = 32509458432.

The previous prime is 57187866457. The next prime is 57187866479. The reversal of 57187866477 is 77466878175.

It is not a de Polignac number, because 57187866477 - 2⁷ = 57187866349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57187866479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7050952 + ... + 7059057.

It is an arithmetic number, because the mean of its divisors is an integer number (5474683880).

Almost surely, 2^57187866477 is an apocalyptic number.

It is an amenable number.

57187866477 is a deficient number, since it is larger than the sum of its proper divisors (30407075603).

57187866477 is a wasteful number, since it uses less digits than its factorization.

57187866477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14110212.

The product of its digits is 110638080, while the sum is 66.

The spelling of 57187866477 in words is "fifty-seven billion, one hundred eighty-seven million, eight hundred sixty-six thousand, four hundred seventy-seven".