12445338319 has 2 divisors, whose sum is σ = 12445338320. Its totient is φ = 12445338318.

The previous prime is 12445338299. The next prime is 12445338331. The reversal of 12445338319 is 91383354421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12445338319 - 2⁵ = 12445338287 is a prime.

It is a super-2 number, since 2×12445338319² (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 (12445338349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222669159 + 6222669160.

It is an arithmetic number, because the mean of its divisors is an integer number (6222669160).

Almost surely, 2^12445338319 is an apocalyptic number.

12445338319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445338319 is an equidigital number, since it uses as much as digits as its factorization.

12445338319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The spelling of 12445338319 in words is "twelve billion, four hundred forty-five million, three hundred thirty-eight thousand, three hundred nineteen".