423064460344439 has 2 divisors, whose sum is σ = 423064460344440. Its totient is φ = 423064460344438.

The previous prime is 423064460344391. The next prime is 423064460344481. The reversal of 423064460344439 is 934443064460324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423064460344439 - 2²⁴ = 423064443567223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423064462344439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211532230172219 + 211532230172220.

It is an arithmetic number, because the mean of its divisors is an integer number (211532230172220).

Almost surely, 2^{423064460344439} is an apocalyptic number.

423064460344439 is a deficient number, since it is larger than the sum of its proper divisors (1).

423064460344439 is an equidigital number, since it uses as much as digits as its factorization.

423064460344439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71663616, while the sum is 56.

The spelling of 423064460344439 in words is "four hundred twenty-three trillion, sixty-four billion, four hundred sixty million, three hundred forty-four thousand, four hundred thirty-nine".