57407381656 has 16 divisors (see below), whose sum is σ = 107922853800. Its totient is φ = 28627953984.

The previous prime is 57407381653. The next prime is 57407381659. The reversal of 57407381656 is 65618370475.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57407381653) and next prime (57407381659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57407381653) 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 3 ways as a sum of consecutive naturals, for example, 9463885 + ... + 9469948.

Almost surely, 2^57407381656 is an apocalyptic number.

It is an amenable number.

57407381656 is a deficient number, since it is larger than the sum of its proper divisors (50515472144).

57407381656 is a wasteful number, since it uses less digits than its factorization.

57407381656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18934218 (or 18934214 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 57407381656 in words is "fifty-seven billion, four hundred seven million, three hundred eighty-one thousand, six hundred fifty-six".