4223244218989 has 2 divisors, whose sum is σ = 4223244218990. Its totient is φ = 4223244218988.

The previous prime is 4223244218951. The next prime is 4223244219037. The reversal of 4223244218989 is 9898124423224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2384914996489 + 1838329222500 = 1544317^2 + 1355850^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223244218989 - 2¹³ = 4223244210797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223244218189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111622109494 + 2111622109495.

It is an arithmetic number, because the mean of its divisors is an integer number (2111622109495).

Almost surely, 2^{4223244218989} is an apocalyptic number.

It is an amenable number.

4223244218989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223244218989 is an equidigital number, since it uses as much as digits as its factorization.

4223244218989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15925248, while the sum is 58.

The spelling of 4223244218989 in words is "four trillion, two hundred twenty-three billion, two hundred forty-four million, two hundred eighteen thousand, nine hundred eighty-nine".