11769911999 has 4 divisors (see below), whose sum is σ = 11787772920. Its totient is φ = 11752051080.

The previous prime is 11769911953. The next prime is 11769912001. The reversal of 11769911999 is 99911996711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11769911999 - 2¹⁶ = 11769846463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11769911299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8929472 + ... + 8930789.

It is an arithmetic number, because the mean of its divisors is an integer number (2946943230).

Almost surely, 2^11769911999 is an apocalyptic number.

11769911999 is a deficient number, since it is larger than the sum of its proper divisors (17860921).

11769911999 is an equidigital number, since it uses as much as digits as its factorization.

11769911999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17860920.

The product of its digits is 2480058, while the sum is 62.

The spelling of 11769911999 in words is "eleven billion, seven hundred sixty-nine million, nine hundred eleven thousand, nine hundred ninety-nine".