11771869825 has 24 divisors (see below), whose sum is σ = 14787660672. Its totient is φ = 9295216320.

The previous prime is 11771869817. The next prime is 11771869841. The reversal of 11771869825 is 52896817711.

11771869825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11771869825 - 2³ = 11771869817 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 733032 + ... + 748918.

It is an arithmetic number, because the mean of its divisors is an integer number (616152528).

Almost surely, 2^11771869825 is an apocalyptic number.

It is an amenable number.

11771869825 is a deficient number, since it is larger than the sum of its proper divisors (3015790847).

11771869825 is a wasteful number, since it uses less digits than its factorization.

11771869825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16281 (or 16276 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 55.

The spelling of 11771869825 in words is "eleven billion, seven hundred seventy-one million, eight hundred sixty-nine thousand, eight hundred twenty-five".