11863512164 has 12 divisors (see below), whose sum is σ = 23727024384. Its totient is φ = 5084362344.

The previous prime is 11863512127. The next prime is 11863512179. The reversal of 11863512164 is 46121536811.

11863512164 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211848404 + ... + 211848459.

It is an arithmetic number, because the mean of its divisors is an integer number (1977252032).

Almost surely, 2^11863512164 is an apocalyptic number.

11863512164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11863512164 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.

11863512164 is a wasteful number, since it uses less digits than its factorization.

11863512164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423696874 (or 423696872 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The spelling of 11863512164 in words is "eleven billion, eight hundred sixty-three million, five hundred twelve thousand, one hundred sixty-four".