12445305469 has 2 divisors, whose sum is σ = 12445305470. Its totient is φ = 12445305468.

The previous prime is 12445305407. The next prime is 12445305493. The reversal of 12445305469 is 96450354421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9369272025 + 3076033444 = 96795^2 + 55462^2 .

It is a cyclic number.

It is not a de Polignac number, because 12445305469 - 2⁹ = 12445304957 is a prime.

It is a super-2 number, since 2×12445305469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445309469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222652734 + 6222652735.

It is an arithmetic number, because the mean of its divisors is an integer number (6222652735).

Almost surely, 2^12445305469 is an apocalyptic number.

It is an amenable number.

12445305469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445305469 is an equidigital number, since it uses as much as digits as its factorization.

12445305469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 12445305469 in words is "twelve billion, four hundred forty-five million, three hundred five thousand, four hundred sixty-nine".