4223136108809 has 2 divisors, whose sum is σ = 4223136108810. Its totient is φ = 4223136108808.

The previous prime is 4223136108773. The next prime is 4223136108833. The reversal of 4223136108809 is 9088016313224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3765916716409 + 457219392400 = 1940597^2 + 676180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223136108809 - 2⁸ = 4223136108553 is a prime.

It is not a weakly prime, because it can be changed into another prime (4223136108869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111568054404 + 2111568054405.

It is an arithmetic number, because the mean of its divisors is an integer number (2111568054405).

Almost surely, 2^{4223136108809} is an apocalyptic number.

It is an amenable number.

4223136108809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223136108809 is an equidigital number, since it uses as much as digits as its factorization.

4223136108809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 4223136108809 in words is "four trillion, two hundred twenty-three billion, one hundred thirty-six million, one hundred eight thousand, eight hundred nine".