22694905688 has 64 divisors (see below), whose sum is σ = 52552100160. Its totient is φ = 8947478016.

The previous prime is 22694905657. The next prime is 22694905711. The reversal of 22694905688 is 88650949622.

It is a congruent number.

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, 160106 + ... + 266502.

It is an arithmetic number, because the mean of its divisors is an integer number (821126565).

Almost surely, 2^22694905688 is an apocalyptic number.

22694905688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22694905688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26276050080).

22694905688 is an abundant number, since it is smaller than the sum of its proper divisors (29857194472).

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

22694905688 is a wasteful number, since it uses less digits than its factorization.

22694905688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106716 (or 106712 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 22694905688 in words is "twenty-two billion, six hundred ninety-four million, nine hundred five thousand, six hundred eighty-eight".