11557868500 has 48 divisors (see below), whose sum is σ = 25619211072. Its totient is φ = 4554132000.

The previous prime is 11557868479. The next prime is 11557868503. The reversal of 11557868500 is 586875511.

11557868500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557868503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 139006 + ... + 206005.

It is an arithmetic number, because the mean of its divisors is an integer number (533733564).

Almost surely, 2^11557868500 is an apocalyptic number.

11557868500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11557868500 is an abundant number, since it is smaller than the sum of its proper divisors (14061342572).

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

11557868500 is a wasteful number, since it uses less digits than its factorization.

11557868500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345097 (or 345085 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 46.

The spelling of 11557868500 in words is "eleven billion, five hundred fifty-seven million, eight hundred sixty-eight thousand, five hundred".