12189311809 has 8 divisors (see below), whose sum is σ = 12389401440. Its totient is φ = 11989756416.

The previous prime is 12189311807. The next prime is 12189311833. The reversal of 12189311809 is 90811398121.

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

It is a cyclic number.

It is not a de Polignac number, because 12189311809 - 2¹ = 12189311807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12189311807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87424 + ... + 178945.

It is an arithmetic number, because the mean of its divisors is an integer number (1548675180).

Almost surely, 2^12189311809 is an apocalyptic number.

It is an amenable number.

12189311809 is a deficient number, since it is larger than the sum of its proper divisors (200089631).

12189311809 is an equidigital number, since it uses as much as digits as its factorization.

12189311809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267119.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 12189311809 in words is "twelve billion, one hundred eighty-nine million, three hundred eleven thousand, eight hundred nine".