12347426969 has 2 divisors, whose sum is σ = 12347426970. Its totient is φ = 12347426968.

The previous prime is 12347426951. The next prime is 12347426983. The reversal of 12347426969 is 96962474321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11840051344 + 507375625 = 108812^2 + 22525^2 .

It is an emirp because it is prime and its reverse (96962474321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12347426969 - 2²⁴ = 12330649753 is a prime.

It is a super-2 number, since 2×12347426969² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12347426969.

It is not a weakly prime, because it can be changed into another prime (12347426929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173713484 + 6173713485.

It is an arithmetic number, because the mean of its divisors is an integer number (6173713485).

Almost surely, 2^12347426969 is an apocalyptic number.

It is an amenable number.

12347426969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12347426969 is an equidigital number, since it uses as much as digits as its factorization.

12347426969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 53.

The spelling of 12347426969 in words is "twelve billion, three hundred forty-seven million, four hundred twenty-six thousand, nine hundred sixty-nine".