11988341868 has 24 divisors (see below), whose sum is σ = 27977429872. Its totient is φ = 3995452224.

The previous prime is 11988341857. The next prime is 11988341879. The reversal of 11988341868 is 86814388911.

11988341868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11988341857) and next prime (11988341879).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255 + ... + 154902.

Almost surely, 2^11988341868 is an apocalyptic number.

It is an amenable number.

11988341868 is an abundant number, since it is smaller than the sum of its proper divisors (15989088004).

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

11988341868 is a wasteful number, since it uses less digits than its factorization.

11988341868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165441 (or 165439 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 57.

The spelling of 11988341868 in words is "eleven billion, nine hundred eighty-eight million, three hundred forty-one thousand, eight hundred sixty-eight".