11686823841 has 72 divisors (see below), whose sum is σ = 20178802560. Its totient is φ = 5993507520.

The previous prime is 11686823809. The next prime is 11686823851. The reversal of 11686823841 is 14832868611.

11686823841 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 11686823841 - 2⁵ = 11686823809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11686823851) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 1401015 + ... + 1409331.

Almost surely, 2^11686823841 is an apocalyptic number.

11686823841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11686823841 is a deficient number, since it is larger than the sum of its proper divisors (8491978719).

11686823841 is a wasteful number, since it uses less digits than its factorization.

11686823841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435 (or 8417 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The spelling of 11686823841 in words is "eleven billion, six hundred eighty-six million, eight hundred twenty-three thousand, eight hundred forty-one".