8981628172 has 36 divisors (see below), whose sum is σ = 17287217640. Its totient is φ = 4080060160.

The previous prime is 8981628169. The next prime is 8981628197. The reversal of 8981628172 is 2718261898.

It is a happy number.

It is a super-3 number, since 3×8981628172³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953148 + ... + 962524.

It is an arithmetic number, because the mean of its divisors is an integer number (480200490).

Almost surely, 2^8981628172 is an apocalyptic number.

It is an amenable number.

8981628172 is a deficient number, since it is larger than the sum of its proper divisors (8305589468).

8981628172 is a wasteful number, since it uses less digits than its factorization.

8981628172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382 (or 11369 counting only the distinct ones).

The product of its digits is 774144, while the sum is 52.

The square root of 8981628172 is about 94771.4523050059. The cubic root of 8981628172 is about 2078.6674906573.

The spelling of 8981628172 in words is "eight billion, nine hundred eighty-one million, six hundred twenty-eight thousand, one hundred seventy-two".