8999678016 has 504 divisors, whose sum is σ = 32407677120. Its totient is φ = 2425365504.

The previous prime is 8999678011. The next prime is 8999678033. The reversal of 8999678016 is 6108769998.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (8999678011) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 39299790 + ... + 39300018.

Almost surely, 2^8999678016 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 8999678016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16203838560).

8999678016 is an abundant number, since it is smaller than the sum of its proper divisors (23407999104).

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

8999678016 is a wasteful number, since it uses less digits than its factorization.

8999678016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The square root of 8999678016 is about 94866.6327851895. The cubic root of 8999678016 is about 2080.0590170631.

The spelling of 8999678016 in words is "eight billion, nine hundred ninety-nine million, six hundred seventy-eight thousand, sixteen".