22639229372844 has 60 divisors (see below), whose sum is σ = 67638191466384. Its totient is φ = 6468351248736.

The previous prime is 22639229372801. The next prime is 22639229372923. The reversal of 22639229372844 is 44827392293622.

22639229372844 is a `hidden beast` number, since 2 + 2 + 6 + 39 + 229 + 372 + 8 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4991009499 + ... + 4991014034.

Almost surely, 2^{22639229372844} is an apocalyptic number.

It is an amenable number.

22639229372844 is an abundant number, since it is smaller than the sum of its proper divisors (44998962093540).

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

22639229372844 is a wasteful number, since it uses less digits than its factorization.

22639229372844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982023556 (or 9982023545 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 22639229372844 in words is "twenty-two trillion, six hundred thirty-nine billion, two hundred twenty-nine million, three hundred seventy-two thousand, eight hundred forty-four".