22764231938 has 18 divisors (see below), whose sum is σ = 39723868233. Its totient is φ = 9755459280.

The previous prime is 22764231937. The next prime is 22764231977. The reversal of 22764231938 is 83913246722.

It can be written as a sum of positive squares in 2 ways, for example, as 20630438689 + 2133793249 = 143633^2 + 46193^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106687.

It is a junction number, because it is equal to n+sod(n) for n = 22764231892 and 22764231901.

It is not an unprimeable number, because it can be changed into a prime (22764231937) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1485998 + ... + 1501238.

Almost surely, 2^22764231938 is an apocalyptic number.

22764231938 is a deficient number, since it is larger than the sum of its proper divisors (16959636295).

22764231938 is an frugal number, since it uses more digits than its factorization.

22764231938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30498 (or 15250 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The spelling of 22764231938 in words is "twenty-two billion, seven hundred sixty-four million, two hundred thirty-one thousand, nine hundred thirty-eight".