8650858728 has 64 divisors (see below), whose sum is σ = 22103435520. Its totient is φ = 2820204800.

The previous prime is 8650858721. The next prime is 8650858757. The reversal of 8650858728 is 8278580568.

It is not an unprimeable number, because it can be changed into a prime (8650858721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2684158 + ... + 2687378.

It is an arithmetic number, because the mean of its divisors is an integer number (345366180).

Almost surely, 2^8650858728 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 8650858728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11051717760).

8650858728 is an abundant number, since it is smaller than the sum of its proper divisors (13452576792).

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

8650858728 is a wasteful number, since it uses less digits than its factorization.

8650858728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5654 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 57.

The square root of 8650858728 is about 93009.9926244487. The cubic root of 8650858728 is about 2052.8304133413.

The spelling of 8650858728 in words is "eight billion, six hundred fifty million, eight hundred fifty-eight thousand, seven hundred twenty-eight".