8628715872 has 72 divisors (see below), whose sum is σ = 28043333136. Its totient is φ = 2465346816.

The previous prime is 8628715871. The next prime is 8628715889. The reversal of 8628715872 is 2785178268.

8628715872 is a `hidden beast` number, since 8 + 628 + 7 + 1 + 5 + 8 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8628715871) 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, 2138043 + ... + 2142074.

It is an arithmetic number, because the mean of its divisors is an integer number (389490738).

Almost surely, 2^8628715872 is an apocalyptic number.

It is an amenable number.

8628715872 is an abundant number, since it is smaller than the sum of its proper divisors (19414617264).

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

8628715872 is a wasteful number, since it uses less digits than its factorization.

8628715872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280140 (or 4280129 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 8628715872 is about 92890.8815331193. The cubic root of 8628715872 is about 2051.0774325960.

The spelling of 8628715872 in words is "eight billion, six hundred twenty-eight million, seven hundred fifteen thousand, eight hundred seventy-two".