4243324043447 has 2 divisors, whose sum is σ = 4243324043448. Its totient is φ = 4243324043446.

The previous prime is 4243324043437. The next prime is 4243324043471. The reversal of 4243324043447 is 7443404233424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4243324043447 - 2⁶ = 4243324043383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4243324043398 and 4243324043407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243324043437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121662021723 + 2121662021724.

It is an arithmetic number, because the mean of its divisors is an integer number (2121662021724).

Almost surely, 2^{4243324043447} is an apocalyptic number.

4243324043447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243324043447 is an equidigital number, since it uses as much as digits as its factorization.

4243324043447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 44.

The spelling of 4243324043447 in words is "four trillion, two hundred forty-three billion, three hundred twenty-four million, forty-three thousand, four hundred forty-seven".