22294723688 has 16 divisors (see below), whose sum is σ = 41985154500. Its totient is φ = 11098682496.

The previous prime is 22294723687. The next prime is 22294723697. The reversal of 22294723688 is 88632749222.

It can be written as a sum of positive squares in 2 ways, for example, as 20552663044 + 1742060644 = 143362^2 + 41738^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22294723687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6082973 + ... + 6086636.

Almost surely, 2^22294723688 is an apocalyptic number.

It is an amenable number.

22294723688 is a deficient number, since it is larger than the sum of its proper divisors (19690430812).

22294723688 is a wasteful number, since it uses less digits than its factorization.

22294723688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12169844 (or 12169840 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The spelling of 22294723688 in words is "twenty-two billion, two hundred ninety-four million, seven hundred twenty-three thousand, six hundred eighty-eight".