12346397727 has 4 divisors (see below), whose sum is σ = 16461863640. Its totient is φ = 8230931816.

The previous prime is 12346397719. The next prime is 12346397729. The reversal of 12346397727 is 72779364321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12346397727 - 2³ = 12346397719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12346397727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12346397729) 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, 2057732952 + ... + 2057732957.

It is an arithmetic number, because the mean of its divisors is an integer number (4115465910).

Almost surely, 2^12346397727 is an apocalyptic number.

12346397727 is a deficient number, since it is larger than the sum of its proper divisors (4115465913).

12346397727 is an equidigital number, since it uses as much as digits as its factorization.

12346397727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115465912.

The product of its digits is 2667168, while the sum is 51.

The spelling of 12346397727 in words is "twelve billion, three hundred forty-six million, three hundred ninety-seven thousand, seven hundred twenty-seven".