8555868864 has 224 divisors, whose sum is σ = 25904586240. Its totient is φ = 2767924224.

The previous prime is 8555868857. The next prime is 8555868883. The reversal of 8555868864 is 4688685558.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9432699 + ... + 9433605.

Almost surely, 2^8555868864 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 8555868864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12952293120).

8555868864 is an abundant number, since it is smaller than the sum of its proper divisors (17348717376).

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

8555868864 is a wasteful number, since it uses less digits than its factorization.

8555868864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1068 counting only the distinct ones).

The product of its digits is 73728000, while the sum is 63.

The square root of 8555868864 is about 92497.9397824622. The cubic root of 8555868864 is about 2045.2891124257.

The spelling of 8555868864 in words is "eight billion, five hundred fifty-five million, eight hundred sixty-eight thousand, eight hundred sixty-four".