4243226657191 has 2 divisors, whose sum is σ = 4243226657192. Its totient is φ = 4243226657190.

The previous prime is 4243226657149. The next prime is 4243226657203. The reversal of 4243226657191 is 1917566223424.

4243226657191 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4243226657191 - 2⁷ = 4243226657063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243226657491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121613328595 + 2121613328596.

It is an arithmetic number, because the mean of its divisors is an integer number (2121613328596).

Almost surely, 2^{4243226657191} is an apocalyptic number.

4243226657191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243226657191 is an equidigital number, since it uses as much as digits as its factorization.

4243226657191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The spelling of 4243226657191 in words is "four trillion, two hundred forty-three billion, two hundred twenty-six million, six hundred fifty-seven thousand, one hundred ninety-one".