8858513664 has 864 divisors, whose sum is σ = 35998470144. Its totient is φ = 2019409920.

The previous prime is 8858513597. The next prime is 8858513683. The reversal of 8858513664 is 4663158588.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8858513664.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53044909 + ... + 53045075.

It is an arithmetic number, because the mean of its divisors is an integer number (41664896).

Almost surely, 2^8858513664 is an apocalyptic number.

8858513664 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8858513664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17999235072).

8858513664 is an abundant number, since it is smaller than the sum of its proper divisors (27139956480).

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

8858513664 is a wasteful number, since it uses less digits than its factorization.

8858513664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 226 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The square root of 8858513664 is about 94119.6773475133. The cubic root of 8858513664 is about 2069.1260723146.

The spelling of 8858513664 in words is "eight billion, eight hundred fifty-eight million, five hundred thirteen thousand, six hundred sixty-four".