12379267897 has 4 divisors (see below), whose sum is σ = 12917496960. Its totient is φ = 11841038836.

The previous prime is 12379267891. The next prime is 12379267907. The reversal of 12379267897 is 79876297321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79876297321 = 127 ⋅628947223.

It is a cyclic number.

It is not a de Polignac number, because 12379267897 - 2³ = 12379267889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12379267891) 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, 269114497 + ... + 269114542.

It is an arithmetic number, because the mean of its divisors is an integer number (3229374240).

Almost surely, 2^12379267897 is an apocalyptic number.

It is an amenable number.

12379267897 is a deficient number, since it is larger than the sum of its proper divisors (538229063).

12379267897 is an equidigital number, since it uses as much as digits as its factorization.

12379267897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538229062.

The product of its digits is 16003008, while the sum is 61.

The spelling of 12379267897 in words is "twelve billion, three hundred seventy-nine million, two hundred sixty-seven thousand, eight hundred ninety-seven".