8539390872 has 64 divisors (see below), whose sum is σ = 24751872000. Its totient is φ = 2722702752.

The previous prime is 8539390823. The next prime is 8539390927. The reversal of 8539390872 is 2780939358.

It is a happy number.

8539390872 is a `hidden beast` number, since 8 + 539 + 39 + 0 + 8 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854472 + ... + 864407.

It is an arithmetic number, because the mean of its divisors is an integer number (386748000).

Almost surely, 2^8539390872 is an apocalyptic number.

It is an amenable number.

8539390872 is an abundant number, since it is smaller than the sum of its proper divisors (16212481128).

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

8539390872 is a wasteful number, since it uses less digits than its factorization.

8539390872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718917 (or 1718907 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 8539390872 is about 92408.8246435372. The cubic root of 8539390872 is about 2043.9752417016.

The spelling of 8539390872 in words is "eight billion, five hundred thirty-nine million, three hundred ninety thousand, eight hundred seventy-two".