11189678189 has 16 divisors (see below), whose sum is σ = 11824862400. Its totient is φ = 10559217024.

The previous prime is 11189678177. The next prime is 11189678237. The reversal of 11189678189 is 98187698111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11189678189 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 (11189678389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910577 + ... + 9911705.

It is an arithmetic number, because the mean of its divisors is an integer number (739053900).

Almost surely, 2^11189678189 is an apocalyptic number.

11189678189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11189678189 is a deficient number, since it is larger than the sum of its proper divisors (635184211).

11189678189 is a wasteful number, since it uses less digits than its factorization.

11189678189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732.

The product of its digits is 1741824, while the sum is 59.

The spelling of 11189678189 in words is "eleven billion, one hundred eighty-nine million, six hundred seventy-eight thousand, one hundred eighty-nine".