57382644636 has 72 divisors (see below), whose sum is σ = 150189705120. Its totient is φ = 18451069056.

The previous prime is 57382644587. The next prime is 57382644653. The reversal of 57382644636 is 63644628375.

57382644636 is a `hidden beast` number, since 573 + 8 + 2 + 6 + 4 + 4 + 63 + 6 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1141545 + ... + 1190751.

Almost surely, 2^57382644636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57382644636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75094852560).

57382644636 is an abundant number, since it is smaller than the sum of its proper divisors (92807060484).

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

57382644636 is a wasteful number, since it uses less digits than its factorization.

57382644636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50363 (or 50358 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

The spelling of 57382644636 in words is "fifty-seven billion, three hundred eighty-two million, six hundred forty-four thousand, six hundred thirty-six".