4223665342439 has 2 divisors, whose sum is σ = 4223665342440. Its totient is φ = 4223665342438.

The previous prime is 4223665342427. The next prime is 4223665342459. The reversal of 4223665342439 is 9342435663224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4223665342439 - 2²⁴ = 4223648565223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223665342459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111832671219 + 2111832671220.

It is an arithmetic number, because the mean of its divisors is an integer number (2111832671220).

Almost surely, 2^{4223665342439} is an apocalyptic number.

4223665342439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223665342439 is an equidigital number, since it uses as much as digits as its factorization.

4223665342439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 53.

The spelling of 4223665342439 in words is "four trillion, two hundred twenty-three billion, six hundred sixty-five million, three hundred forty-two thousand, four hundred thirty-nine".