11905912389 has 8 divisors (see below), whose sum is σ = 18142342720. Its totient is φ = 6803378496.

The previous prime is 11905912357. The next prime is 11905912399. The reversal of 11905912389 is 98321950911.

11905912389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11905912389 - 2⁵ = 11905912357 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 (11905912399) 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 7 ways as a sum of consecutive naturals, for example, 283474084 + ... + 283474125.

It is an arithmetic number, because the mean of its divisors is an integer number (2267792840).

Almost surely, 2^11905912389 is an apocalyptic number.

It is an amenable number.

11905912389 is a deficient number, since it is larger than the sum of its proper divisors (6236430331).

11905912389 is an equidigital number, since it uses as much as digits as its factorization.

11905912389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566948219.

The product of its (nonzero) digits is 174960, while the sum is 48.

The spelling of 11905912389 in words is "eleven billion, nine hundred five million, nine hundred twelve thousand, three hundred eighty-nine".