8999672832 has 110 divisors (see below), whose sum is σ = 26875030248. Its totient is φ = 2999863296.

The previous prime is 8999672821. The next prime is 8999672833. The reversal of 8999672832 is 2382769998.

It is a super-2 number, since 2×8999672832² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8999672832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8999672833) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28693 + ... + 137195.

Almost surely, 2^8999672832 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 8999672832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13437515124).

8999672832 is an abundant number, since it is smaller than the sum of its proper divisors (17875357416).

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

8999672832 is a wasteful number, since it uses less digits than its factorization.

8999672832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108535 (or 108508 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 8999672832 is about 94866.6054626179. The cubic root of 8999672832 is about 2080.0586176774.

The spelling of 8999672832 in words is "eight billion, nine hundred ninety-nine million, six hundred seventy-two thousand, eight hundred thirty-two".