57640403676 has 24 divisors (see below), whose sum is σ = 138129256720. Its totient is φ = 18694184832.

The previous prime is 57640403659. The next prime is 57640403693. The reversal of 57640403676 is 67630404675.

It is an interprime number because it is at equal distance from previous prime (57640403659) and next prime (57640403693).

It is a super-2 number, since 2×57640403676² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64909921 + ... + 64910808.

Almost surely, 2^57640403676 is an apocalyptic number.

It is an amenable number.

57640403676 is an abundant number, since it is smaller than the sum of its proper divisors (80488853044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57640403676 is a wasteful number, since it uses less digits than its factorization.

57640403676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129820773 (or 129820771 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 48.

Subtracting 57640403676 from its reverse (67630404675), we obtain a palindrome (9990000999).

The spelling of 57640403676 in words is "fifty-seven billion, six hundred forty million, four hundred three thousand, six hundred seventy-six".