8859864720 has 160 divisors (see below), whose sum is σ = 32057376768. Its totient is φ = 1982006784.

The previous prime is 8859864719. The next prime is 8859864731. The reversal of 8859864720 is 274689588.

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, 22857 + ... + 135063.

Almost surely, 2^8859864720 is an apocalyptic number.

8859864720 is a gapful number since it is divisible by the number (80) 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 8859864720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16028688384).

8859864720 is an abundant number, since it is smaller than the sum of its proper divisors (23197512048).

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

8859864720 is a wasteful number, since it uses less digits than its factorization.

8859864720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112277 (or 112271 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The square root of 8859864720 is about 94126.8544040435. The cubic root of 8859864720 is about 2069.2312578718.

The spelling of 8859864720 in words is "eight billion, eight hundred fifty-nine million, eight hundred sixty-four thousand, seven hundred twenty".