8559321672 has 32 divisors (see below), whose sum is σ = 23343605280. Its totient is φ = 2593733760.

The previous prime is 8559321671. The next prime is 8559321697. The reversal of 8559321672 is 2761239558.

It is not an unprimeable number, because it can be changed into a prime (8559321671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16210573 + ... + 16211100.

It is an arithmetic number, because the mean of its divisors is an integer number (729487665).

Almost surely, 2^8559321672 is an apocalyptic number.

It is an amenable number.

8559321672 is an abundant number, since it is smaller than the sum of its proper divisors (14784283608).

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

8559321672 is a wasteful number, since it uses less digits than its factorization.

8559321672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32421693 (or 32421689 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 8559321672 is about 92516.6021425344. The cubic root of 8559321672 is about 2045.5642078389.

The spelling of 8559321672 in words is "eight billion, five hundred fifty-nine million, three hundred twenty-one thousand, six hundred seventy-two".