8999928576 has 144 divisors (see below), whose sum is σ = 26793733120. Its totient is φ = 2979763200.

The previous prime is 8999928559. The next prime is 8999928583. The reversal of 8999928576 is 6758299998.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039401 + ... + 1048023.

Almost surely, 2^8999928576 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 8999928576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13396866560).

8999928576 is an abundant number, since it is smaller than the sum of its proper divisors (17793804544).

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

8999928576 is a wasteful number, since it uses less digits than its factorization.

8999928576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799 (or 8779 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 72.

The square root of 8999928576 is about 94867.9533667719. The cubic root of 8999928576 is about 2080.0783205223.

The spelling of 8999928576 in words is "eight billion, nine hundred ninety-nine million, nine hundred twenty-eight thousand, five hundred seventy-six".