22531284904 has 16 divisors (see below), whose sum is σ = 42310081620. Its totient is φ = 11248596480.

The previous prime is 22531284887. The next prime is 22531284907. The reversal of 22531284904 is 40948213522.

It can be written as a sum of positive squares in 2 ways, for example, as 17974764900 + 4556520004 = 134070^2 + 67502^2 .

It is not an unprimeable number, because it can be changed into a prime (22531284907) 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, 2125129 + ... + 2135704.

Almost surely, 2^22531284904 is an apocalyptic number.

It is an amenable number.

22531284904 is a deficient number, since it is larger than the sum of its proper divisors (19778796716).

22531284904 is a wasteful number, since it uses less digits than its factorization.

22531284904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261500 (or 4261496 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 22531284904 in words is "twenty-two billion, five hundred thirty-one million, two hundred eighty-four thousand, nine hundred four".