22639979274 has 16 divisors (see below), whose sum is σ = 49396318560. Its totient is φ = 6860599760.

The previous prime is 22639979273. The next prime is 22639979363. The reversal of 22639979274 is 47297993622.

It is not an unprimeable number, because it can be changed into a prime (22639979273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171514929 + ... + 171515060.

It is an arithmetic number, because the mean of its divisors is an integer number (3087269910).

Almost surely, 2^22639979274 is an apocalyptic number.

22639979274 is an abundant number, since it is smaller than the sum of its proper divisors (26756339286).

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

22639979274 is a wasteful number, since it uses less digits than its factorization.

22639979274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343030005.

The product of its digits is 20575296, while the sum is 60.

The spelling of 22639979274 in words is "twenty-two billion, six hundred thirty-nine million, nine hundred seventy-nine thousand, two hundred seventy-four".