11500233885 has 96 divisors (see below), whose sum is σ = 23300379648. Its totient is φ = 5138265600.

The previous prime is 11500233817. The next prime is 11500233907. The reversal of 11500233885 is 58833200511.

It is not a de Polignac number, because 11500233885 - 2⁷ = 11500233757 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4890460 + ... + 4892810.

It is an arithmetic number, because the mean of its divisors is an integer number (242712288).

Almost surely, 2^11500233885 is an apocalyptic number.

11500233885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11500233885 is an abundant number, since it is smaller than the sum of its proper divisors (11800145763).

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

11500233885 is a wasteful number, since it uses less digits than its factorization.

11500233885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 11500233885 in words is "eleven billion, five hundred million, two hundred thirty-three thousand, eight hundred eighty-five".