22644625836 has 24 divisors (see below), whose sum is σ = 60385669120. Its totient is φ = 6469893072.

The previous prime is 22644625813. The next prime is 22644625837. The reversal of 22644625836 is 63852644622.

It is not an unprimeable number, because it can be changed into a prime (22644625837) 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, 134789356 + ... + 134789523.

Almost surely, 2^22644625836 is an apocalyptic number.

It is an amenable number.

22644625836 is an abundant number, since it is smaller than the sum of its proper divisors (37741043284).

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

22644625836 is a wasteful number, since it uses less digits than its factorization.

22644625836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269578893 (or 269578891 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 48.

The spelling of 22644625836 in words is "twenty-two billion, six hundred forty-four million, six hundred twenty-five thousand, eight hundred thirty-six".