11581824228 has 24 divisors (see below), whose sum is σ = 29103045888. Its totient is φ = 3563638176.

The previous prime is 11581824187. The next prime is 11581824239. The reversal of 11581824228 is 82242818511.

It is a super-3 number, since 3×11581824228³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11581824228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37121076 + ... + 37121387.

It is an arithmetic number, because the mean of its divisors is an integer number (1212626912).

Almost surely, 2^11581824228 is an apocalyptic number.

It is an amenable number.

11581824228 is an abundant number, since it is smaller than the sum of its proper divisors (17521221660).

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

11581824228 is a wasteful number, since it uses less digits than its factorization.

11581824228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74242483 (or 74242481 counting only the distinct ones).

The product of its digits is 81920, while the sum is 42.

The spelling of 11581824228 in words is "eleven billion, five hundred eighty-one million, eight hundred twenty-four thousand, two hundred twenty-eight".