22559428872 has 108 divisors (see below), whose sum is σ = 63243708255. Its totient is φ = 7264490400.

The previous prime is 22559428823. The next prime is 22559428877. The reversal of 22559428872 is 27882495522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22559428872 is a `hidden beast` number, since 2 + 2 + 559 + 4 + 2 + 8 + 87 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11279714436 + 11279714436 = 106206^2 + 106206^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106206.

It is not an unprimeable number, because it can be changed into a prime (22559428877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39508347 + ... + 39508917.

Almost surely, 2^22559428872 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 22559428872

22559428872 is an abundant number, since it is smaller than the sum of its proper divisors (40684279383).

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

22559428872 is an equidigital number, since it uses as much as digits as its factorization.

22559428872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 607 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 22559428872 in words is "twenty-two billion, five hundred fifty-nine million, four hundred twenty-eight thousand, eight hundred seventy-two".