52639723008 has 120 divisors (see below), whose sum is σ = 154003909488. Its totient is φ = 17306099712.

The previous prime is 52639723001. The next prime is 52639723039. The reversal of 52639723008 is 80032793625.

52639723008 is a `hidden beast` number, since 5 + 2 + 639 + 7 + 2 + 3 + 0 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52639723001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258141 + ... + 414627.

Almost surely, 2^52639723008 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 52639723008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77001954744).

52639723008 is an abundant number, since it is smaller than the sum of its proper divisors (101364186480).

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

52639723008 is a wasteful number, since it uses less digits than its factorization.

52639723008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156584 (or 156565 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 52639723008 in words is "fifty-two billion, six hundred thirty-nine million, seven hundred twenty-three thousand, eight".