8979661320 has 128 divisors (see below), whose sum is σ = 31009305600. Its totient is φ = 2037701376.

The previous prime is 8979661261. The next prime is 8979661333. The reversal of 8979661320 is 231669798.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78307 + ... + 155213.

It is an arithmetic number, because the mean of its divisors is an integer number (242260200).

Almost surely, 2^8979661320 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 8979661320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15504652800).

8979661320 is an abundant number, since it is smaller than the sum of its proper divisors (22029644280).

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

8979661320 is a wasteful number, since it uses less digits than its factorization.

8979661320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77067 (or 77063 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 8979661320 is about 94761.0749200324. The cubic root of 8979661320 is about 2078.5157464633.

The spelling of 8979661320 in words is "eight billion, nine hundred seventy-nine million, six hundred sixty-one thousand, three hundred twenty".