52816439268 has 18 divisors (see below), whose sum is σ = 133508221574. Its totient is φ = 17605479744.

The previous prime is 52816439233. The next prime is 52816439297. The reversal of 52816439268 is 86293461825.

52816439268 is a `hidden beast` number, since 528 + 1 + 64 + 39 + 26 + 8 = 666.

52816439268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48374483364 + 4441955904 = 219942^2 + 66648^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 733561621 + ... + 733561692.

Almost surely, 2^52816439268 is an apocalyptic number.

It is an amenable number.

52816439268 is an abundant number, since it is smaller than the sum of its proper divisors (80691782306).

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

52816439268 is a wasteful number, since it uses less digits than its factorization.

52816439268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467123323 (or 1467123318 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 52816439268 in words is "fifty-two billion, eight hundred sixteen million, four hundred thirty-nine thousand, two hundred sixty-eight".