22905982138 has 32 divisors (see below), whose sum is σ = 39260712960. Its totient is φ = 9929245440.

The previous prime is 22905982123. The next prime is 22905982201. The reversal of 22905982138 is 83128950922.

It is a junction number, because it is equal to n+sod(n) for n = 22905982091 and 22905982100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157623 + ... + 265813.

It is an arithmetic number, because the mean of its divisors is an integer number (1226897280).

Almost surely, 2^22905982138 is an apocalyptic number.

22905982138 is a deficient number, since it is larger than the sum of its proper divisors (16354730822).

22905982138 is a wasteful number, since it uses less digits than its factorization.

22905982138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108702.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 22905982138 in words is "twenty-two billion, nine hundred five million, nine hundred eighty-two thousand, one hundred thirty-eight".