11865654008 has 32 divisors (see below), whose sum is σ = 24262795200. Its totient is φ = 5407129728.

The previous prime is 11865653993. The next prime is 11865654019. The reversal of 11865654008 is 80045656811.

It is a self number, because there is not a number n which added to its sum of digits gives 11865654008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713891 + ... + 730322.

It is an arithmetic number, because the mean of its divisors is an integer number (758212350).

Almost surely, 2^11865654008 is an apocalyptic number.

It is an amenable number.

11865654008 is an abundant number, since it is smaller than the sum of its proper divisors (12397141192).

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

11865654008 is a wasteful number, since it uses less digits than its factorization.

11865654008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444311 (or 1444307 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 11865654008 in words is "eleven billion, eight hundred sixty-five million, six hundred fifty-four thousand, eight".