423441344344219 has 2 divisors, whose sum is σ = 423441344344220. Its totient is φ = 423441344344218.

The previous prime is 423441344344177. The next prime is 423441344344279. The reversal of 423441344344219 is 912443443144324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423441344344219 - 2⁴⁵ = 388256972255387 is a prime.

It is a super-2 number, since 2×423441344344219² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423441344344279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211720672172109 + 211720672172110.

It is an arithmetic number, because the mean of its divisors is an integer number (211720672172110).

Almost surely, 2^{423441344344219} is an apocalyptic number.

423441344344219 is a deficient number, since it is larger than the sum of its proper divisors (1).

423441344344219 is an equidigital number, since it uses as much as digits as its factorization.

423441344344219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15925248, while the sum is 52.

The spelling of 423441344344219 in words is "four hundred twenty-three trillion, four hundred forty-one billion, three hundred forty-four million, three hundred forty-four thousand, two hundred nineteen".