53604972864 has 84 divisors (see below), whose sum is σ = 153943625056. Its totient is φ = 17834059008.

The previous prime is 53604972857. The next prime is 53604972871. The reversal of 53604972864 is 46827940635.

53604972864 is a `hidden beast` number, since 5 + 3 + 604 + 9 + 7 + 28 + 6 + 4 = 666.

53604972864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53604972857) and next prime (53604972871).

It is a self number, because there is not a number n which added to its sum of digits gives 53604972864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212277 + ... + 390219.

Almost surely, 2^53604972864 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 53604972864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76971812528).

53604972864 is an abundant number, since it is smaller than the sum of its proper divisors (100338652192).

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

53604972864 is a wasteful number, since it uses less digits than its factorization.

53604972864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178484 (or 178471 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 53604972864 in words is "fifty-three billion, six hundred four million, nine hundred seventy-two thousand, eight hundred sixty-four".