8870157720 has 320 divisors, whose sum is σ = 31446835200. Its totient is φ = 2239176960.

The previous prime is 8870157719. The next prime is 8870157731. The reversal of 8870157720 is 277510788.

8870157720 is a `hidden beast` number, since 8 + 8 + 70 + 1 + 577 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4719741 + ... + 4721619.

It is an arithmetic number, because the mean of its divisors is an integer number (98271360).

Almost surely, 2^8870157720 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 8870157720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15723417600).

8870157720 is an abundant number, since it is smaller than the sum of its proper divisors (22576677480).

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

8870157720 is a wasteful number, since it uses less digits than its factorization.

8870157720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 8870157720 is about 94181.5147467909. The cubic root of 8870157720 is about 2070.0322616270.

The spelling of 8870157720 in words is "eight billion, eight hundred seventy million, one hundred fifty-seven thousand, seven hundred twenty".