4243244213057 has 2 divisors, whose sum is σ = 4243244213058. Its totient is φ = 4243244213056.

The previous prime is 4243244213027. The next prime is 4243244213099. The reversal of 4243244213057 is 7503124423424.

4243244213057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3279880369936 + 963363843121 = 1811044^2 + 981511^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243244213057 - 2¹⁰ = 4243244212033 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243244213027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121622106528 + 2121622106529.

It is an arithmetic number, because the mean of its divisors is an integer number (2121622106529).

Almost surely, 2^{4243244213057} is an apocalyptic number.

It is an amenable number.

4243244213057 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243244213057 is an equidigital number, since it uses as much as digits as its factorization.

4243244213057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 41.

The spelling of 4243244213057 in words is "four trillion, two hundred forty-three billion, two hundred forty-four million, two hundred thirteen thousand, fifty-seven".