8616865792 has 52 divisors (see below), whose sum is σ = 17393555736. Its totient is φ = 4267950080.

The previous prime is 8616865783. The next prime is 8616865793. The reversal of 8616865792 is 2975686168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8616865793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428442 + ... + 448102.

Almost surely, 2^8616865792 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 8616865792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8696777868).

8616865792 is an abundant number, since it is smaller than the sum of its proper divisors (8776689944).

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

8616865792 is a wasteful number, since it uses less digits than its factorization.

8616865792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792 (or 19770 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The square root of 8616865792 is about 92827.0746711325. The cubic root of 8616865792 is about 2050.1380666083.

The spelling of 8616865792 in words is "eight billion, six hundred sixteen million, eight hundred sixty-five thousand, seven hundred ninety-two".