11900839999 has 4 divisors (see below), whose sum is σ = 12018670200. Its totient is φ = 11783009800.

The previous prime is 11900839963. The next prime is 11900840041. The reversal of 11900839999 is 99993800911.

11900839999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11900839999 - 2³¹ = 9753356351 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 (11900839099) 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 3 ways as a sum of consecutive naturals, for example, 58914949 + ... + 58915150.

It is an arithmetic number, because the mean of its divisors is an integer number (3004667550).

Almost surely, 2^11900839999 is an apocalyptic number.

11900839999 is a deficient number, since it is larger than the sum of its proper divisors (117830201).

11900839999 is a wasteful number, since it uses less digits than its factorization.

11900839999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117830200.

The product of its (nonzero) digits is 1417176, while the sum is 58.

The spelling of 11900839999 in words is "eleven billion, nine hundred million, eight hundred thirty-nine thousand, nine hundred ninety-nine".