11545181788 has 12 divisors (see below), whose sum is σ = 23090363632. Its totient is φ = 4947935040.

The previous prime is 11545181779. The next prime is 11545181801. The reversal of 11545181788 is 88718154511.

11545181788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11545181788 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206163933 + ... + 206163988.

Almost surely, 2^11545181788 is an apocalyptic number.

It is an amenable number.

11545181788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11545181788 is a wasteful number, since it uses less digits than its factorization.

11545181788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412327932 (or 412327930 counting only the distinct ones).

The product of its digits is 358400, while the sum is 49.

The spelling of 11545181788 in words is "eleven billion, five hundred forty-five million, one hundred eighty-one thousand, seven hundred eighty-eight".