11187050865840 has 120 divisors (see below), whose sum is σ = 37635643785168. Its totient is φ = 2977988912640.

The previous prime is 11187050865797. The next prime is 11187050865869. The reversal of 11187050865840 is 4856805078111.

11187050865840 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 7 + 0 + 50 + 8 + 6 + 584 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 13194459 + ... + 14016698.

Almost surely, 2^{11187050865840} is an apocalyptic number.

11187050865840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11187050865840 is an abundant number, since it is smaller than the sum of its proper divisors (26448592919328).

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

11187050865840 is a wasteful number, since it uses less digits than its factorization.

11187050865840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27211747 (or 27211738 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 54.

The spelling of 11187050865840 in words is "eleven trillion, one hundred eighty-seven billion, fifty million, eight hundred sixty-five thousand, eight hundred forty".