22749028272 has 30 divisors (see below), whose sum is σ = 63665683692. Its totient is φ = 7583009376.

The previous prime is 22749028249. The next prime is 22749028283. The reversal of 22749028272 is 27282094722.

22749028272 is a `hidden beast` number, since 2 + 274 + 90 + 28 + 272 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78989538 + ... + 78989825.

Almost surely, 2^22749028272 is an apocalyptic number.

It is an amenable number.

22749028272 is an abundant number, since it is smaller than the sum of its proper divisors (40916655420).

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

22749028272 is a wasteful number, since it uses less digits than its factorization.

22749028272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157979377 (or 157979368 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 22749028272 in words is "twenty-two billion, seven hundred forty-nine million, twenty-eight thousand, two hundred seventy-two".