8656207872 has 480 divisors, whose sum is σ = 28184862720. Its totient is φ = 2335703040.

The previous prime is 8656207871. The next prime is 8656207897. The reversal of 8656207872 is 2787026568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8656207871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279232497 + ... + 279232527.

It is an arithmetic number, because the mean of its divisors is an integer number (58718464).

Almost surely, 2^8656207872 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 8656207872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14092431360).

8656207872 is an abundant number, since it is smaller than the sum of its proper divisors (19528654848).

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

8656207872 is a wasteful number, since it uses less digits than its factorization.

8656207872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The square root of 8656207872 is about 93038.7439296125. The cubic root of 8656207872 is about 2053.2534396680.

The spelling of 8656207872 in words is "eight billion, six hundred fifty-six million, two hundred seven thousand, eight hundred seventy-two".