12164869589 has 4 divisors (see below), whose sum is σ = 12318855360. Its totient is φ = 12010883820.

The previous prime is 12164869523. The next prime is 12164869649. The reversal of 12164869589 is 98596846121.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-12164869589 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 (12164809589) 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, 76992767 + ... + 76992924.

It is an arithmetic number, because the mean of its divisors is an integer number (3079713840).

Almost surely, 2^12164869589 is an apocalyptic number.

It is an amenable number.

12164869589 is a deficient number, since it is larger than the sum of its proper divisors (153985771).

12164869589 is an equidigital number, since it uses as much as digits as its factorization.

12164869589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153985770.

The product of its digits is 7464960, while the sum is 59.

The spelling of 12164869589 in words is "twelve billion, one hundred sixty-four million, eight hundred sixty-nine thousand, five hundred eighty-nine".