12344429947 has 2 divisors, whose sum is σ = 12344429948. Its totient is φ = 12344429946.

The previous prime is 12344429939. The next prime is 12344430061. The reversal of 12344429947 is 74992444321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12344429947 - 2³ = 12344429939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12344429947.

It is not a weakly prime, because it can be changed into another prime (12344429047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172214973 + 6172214974.

It is an arithmetic number, because the mean of its divisors is an integer number (6172214974).

Almost surely, 2^12344429947 is an apocalyptic number.

12344429947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344429947 is an equidigital number, since it uses as much as digits as its factorization.

12344429947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 49.

The spelling of 12344429947 in words is "twelve billion, three hundred forty-four million, four hundred twenty-nine thousand, nine hundred forty-seven".