2018223436289 has 2 divisors, whose sum is σ = 2018223436290. Its totient is φ = 2018223436288.

The previous prime is 2018223436249. The next prime is 2018223436417. The reversal of 2018223436289 is 9826343228102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1734049149889 + 284174286400 = 1316833^2 + 533080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2018223436289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2018223436249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009111718144 + 1009111718145.

It is an arithmetic number, because the mean of its divisors is an integer number (1009111718145).

Almost surely, 2^{2018223436289} is an apocalyptic number.

It is an amenable number.

2018223436289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018223436289 is an equidigital number, since it uses as much as digits as its factorization.

2018223436289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 2018223436289 in words is "two trillion, eighteen billion, two hundred twenty-three million, four hundred thirty-six thousand, two hundred eighty-nine".