22625138979 has 24 divisors (see below), whose sum is σ = 33071528880. Its totient is φ = 14903800128.

The previous prime is 22625138969. The next prime is 22625139001. The reversal of 22625138979 is 97983152622.

22625138979 is a `hidden beast` number, since 2 + 2 + 6 + 251 + 389 + 7 + 9 = 666.

It is not a de Polignac number, because 22625138979 - 2¹¹ = 22625136931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22625138909) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 344409 + ... + 404805.

It is an arithmetic number, because the mean of its divisors is an integer number (1377980370).

Almost surely, 2^22625138979 is an apocalyptic number.

22625138979 is a deficient number, since it is larger than the sum of its proper divisors (10446389901).

22625138979 is a wasteful number, since it uses less digits than its factorization.

22625138979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60899 (or 60896 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

It can be divided in two parts, 22625 and 138979, that added together give a square (161604 = 402²).

The spelling of 22625138979 in words is "twenty-two billion, six hundred twenty-five million, one hundred thirty-eight thousand, nine hundred seventy-nine".