22068483872 has 18 divisors (see below), whose sum is σ = 43448982129. Its totient is φ = 11033821760.

The previous prime is 22068483847. The next prime is 22068483883. The reversal of 22068483872 is 27838486022.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 12760865296 + 9307618576 = 112964^2 + 96476^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105044.

It is a super-2 number, since 2×22068483872² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22068483872.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 827222 + ... + 853482.

Almost surely, 2^22068483872 is an apocalyptic number.

It is an amenable number.

22068483872 is a deficient number, since it is larger than the sum of its proper divisors (21380498257).

22068483872 is an frugal number, since it uses more digits than its factorization.

22068483872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52532 (or 26263 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

Multiplying 22068483872 by its sum of digits (50), we get a square (1103424193600 = 1050440²).

The spelling of 22068483872 in words is "twenty-two billion, sixty-eight million, four hundred eighty-three thousand, eight hundred seventy-two".