11643585875 has 16 divisors (see below), whose sum is σ = 14535645696. Its totient is φ = 9312016000.

The previous prime is 11643585853. The next prime is 11643585911. The reversal of 11643585875 is 57858534611.

It is not a de Polignac number, because 11643585875 - 2²² = 11639391571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457742 + ... + 482508.

It is an arithmetic number, because the mean of its divisors is an integer number (908477856).

Almost surely, 2^11643585875 is an apocalyptic number.

11643585875 is a deficient number, since it is larger than the sum of its proper divisors (2892059821).

11643585875 is an equidigital number, since it uses as much as digits as its factorization.

11643585875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28543 (or 28533 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 53.

The spelling of 11643585875 in words is "eleven billion, six hundred forty-three million, five hundred eighty-five thousand, eight hundred seventy-five".