52885636644 has 12 divisors (see below), whose sum is σ = 123399818864. Its totient is φ = 17628545544.

The previous prime is 52885636637. The next prime is 52885636663. The reversal of 52885636644 is 44663658825.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203568182 + ... + 2203568205.

Almost surely, 2^52885636644 is an apocalyptic number.

It is an amenable number.

52885636644 is an abundant number, since it is smaller than the sum of its proper divisors (70514182220).

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

52885636644 is a wasteful number, since it uses less digits than its factorization.

52885636644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407136394 (or 4407136392 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 57.

The spelling of 52885636644 in words is "fifty-two billion, eight hundred eighty-five million, six hundred thirty-six thousand, six hundred forty-four".