11689038389 has 4 divisors (see below), whose sum is σ = 13358901024. Its totient is φ = 10019175756.

The previous prime is 11689038379. The next prime is 11689038391. The reversal of 11689038389 is 98383098611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11689038389 - 2²⁴ = 11672261173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11689038379) 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, 834931307 + ... + 834931320.

It is an arithmetic number, because the mean of its divisors is an integer number (3339725256).

Almost surely, 2^11689038389 is an apocalyptic number.

It is an amenable number.

11689038389 is a deficient number, since it is larger than the sum of its proper divisors (1669862635).

11689038389 is an equidigital number, since it uses as much as digits as its factorization.

11689038389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669862634.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 11689038389 in words is "eleven billion, six hundred eighty-nine million, thirty-eight thousand, three hundred eighty-nine".