11719919189 has 8 divisors (see below), whose sum is σ = 12976193568. Its totient is φ = 10495449360.

The previous prime is 11719919161. The next prime is 11719919227. The reversal of 11719919189 is 98191991711.

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

It is not a de Polignac number, because 11719919189 - 2¹² = 11719915093 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 (11719919149) 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 7 ways as a sum of consecutive naturals, for example, 7950362 + ... + 7951835.

It is an arithmetic number, because the mean of its divisors is an integer number (1622024196).

Almost surely, 2^11719919189 is an apocalyptic number.

It is an amenable number.

11719919189 is a deficient number, since it is larger than the sum of its proper divisors (1256274379).

11719919189 is a wasteful number, since it uses less digits than its factorization.

11719919189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902275.

The product of its digits is 367416, while the sum is 56.

The spelling of 11719919189 in words is "eleven billion, seven hundred nineteen million, nine hundred nineteen thousand, one hundred eighty-nine".