8728232064 has 64 divisors (see below), whose sum is σ = 23203514880. Its totient is φ = 2907008000.

The previous prime is 8728232059. The next prime is 8728232081. The reversal of 8728232064 is 4602328278.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490849 + ... + 508319.

It is an arithmetic number, because the mean of its divisors is an integer number (362554920).

Almost surely, 2^8728232064 is an apocalyptic number.

It is an amenable number.

8728232064 is an abundant number, since it is smaller than the sum of its proper divisors (14475282816).

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

8728232064 is a wasteful number, since it uses less digits than its factorization.

8728232064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18789 (or 18777 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 8728232064 is about 93425.0077013644. The cubic root of 8728232064 is about 2058.9324333018.

The spelling of 8728232064 in words is "eight billion, seven hundred twenty-eight million, two hundred thirty-two thousand, sixty-four".