11817011802 has 32 divisors (see below), whose sum is σ = 24030452160. Its totient is φ = 3873260160.

The previous prime is 11817011779. The next prime is 11817011813. The reversal of 11817011802 is 20811071811.

It is a self number, because there is not a number n which added to its sum of digits gives 11817011802.

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, 104224 + ... + 185732.

It is an arithmetic number, because the mean of its divisors is an integer number (750951630).

Almost surely, 2^11817011802 is an apocalyptic number.

11817011802 is an abundant number, since it is smaller than the sum of its proper divisors (12213440358).

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

11817011802 is a wasteful number, since it uses less digits than its factorization.

11817011802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81918.

The product of its (nonzero) digits is 896, while the sum is 30.

The spelling of 11817011802 in words is "eleven billion, eight hundred seventeen million, eleven thousand, eight hundred two".