11528822844 has 72 divisors (see below), whose sum is σ = 36333268608. Its totient is φ = 2994498720.

The previous prime is 11528822813. The next prime is 11528822863. The reversal of 11528822844 is 44822882511.

It is a happy number.

11528822844 is a `hidden beast` number, since 1 + 1 + 528 + 82 + 2 + 8 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11528822844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2076742 + ... + 2082285.

Almost surely, 2^11528822844 is an apocalyptic number.

11528822844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11528822844 is an abundant number, since it is smaller than the sum of its proper divisors (24804445764).

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

11528822844 is a wasteful number, since it uses less digits than its factorization.

11528822844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159055 (or 4159050 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The spelling of 11528822844 in words is "eleven billion, five hundred twenty-eight million, eight hundred twenty-two thousand, eight hundred forty-four".