12445421419 has 2 divisors, whose sum is σ = 12445421420. Its totient is φ = 12445421418.

The previous prime is 12445421399. The next prime is 12445421423. The reversal of 12445421419 is 91412454421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12445421419 - 2⁷ = 12445421291 is a prime.

It is a super-2 number, since 2×12445421419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12445421719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222710709 + 6222710710.

It is an arithmetic number, because the mean of its divisors is an integer number (6222710710).

Almost surely, 2^12445421419 is an apocalyptic number.

12445421419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445421419 is an equidigital number, since it uses as much as digits as its factorization.

12445421419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The spelling of 12445421419 in words is "twelve billion, four hundred forty-five million, four hundred twenty-one thousand, four hundred nineteen".