22726549236 has 12 divisors (see below), whose sum is σ = 53028614912. Its totient is φ = 7575516408.

The previous prime is 22726549199. The next prime is 22726549291. The reversal of 22726549236 is 63294562722.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946939540 + ... + 946939563.

Almost surely, 2^22726549236 is an apocalyptic number.

It is an amenable number.

22726549236 is an abundant number, since it is smaller than the sum of its proper divisors (30302065676).

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

22726549236 is a wasteful number, since it uses less digits than its factorization.

22726549236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893879110 (or 1893879108 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 48.

The spelling of 22726549236 in words is "twenty-two billion, seven hundred twenty-six million, five hundred forty-nine thousand, two hundred thirty-six".