8994625128 has 64 divisors (see below), whose sum is σ = 25033156800. Its totient is φ = 2992438080.

The previous prime is 8994625121. The next prime is 8994625153. The reversal of 8994625128 is 8215264998.

It is a happy number.

8994625128 is a `hidden beast` number, since 8 + 9 + 9 + 4 + 625 + 1 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8994625121) 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, 73158 + ... + 152778.

It is an arithmetic number, because the mean of its divisors is an integer number (391143075).

Almost surely, 2^8994625128 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 8994625128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12516578400).

8994625128 is an abundant number, since it is smaller than the sum of its proper divisors (16038531672).

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

8994625128 is a wasteful number, since it uses less digits than its factorization.

8994625128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80159 (or 80149 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 8994625128 is about 94839.9975115984. The cubic root of 8994625128 is about 2079.6696596938.

The spelling of 8994625128 in words is "eight billion, nine hundred ninety-four million, six hundred twenty-five thousand, one hundred twenty-eight".