11272805328 has 20 divisors (see below), whose sum is σ = 29121413888. Its totient is φ = 3757601760.

The previous prime is 11272805321. The next prime is 11272805339. The reversal of 11272805328 is 82350827211.

It is a super-2 number, since 2×11272805328² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272805321) 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, 117425008 + ... + 117425103.

Almost surely, 2^11272805328 is an apocalyptic number.

It is an amenable number.

11272805328 is an abundant number, since it is smaller than the sum of its proper divisors (17848608560).

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

11272805328 is a wasteful number, since it uses less digits than its factorization.

11272805328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234850122 (or 234850116 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 11272805328 in words is "eleven billion, two hundred seventy-two million, eight hundred five thousand, three hundred twenty-eight".