424143122489 has 2 divisors, whose sum is σ = 424143122490. Its totient is φ = 424143122488.

The previous prime is 424143122437. The next prime is 424143122509. The reversal of 424143122489 is 984221341424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423030566464 + 1112556025 = 650408^2 + 33355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424143122489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (424143622489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212071561244 + 212071561245.

It is an arithmetic number, because the mean of its divisors is an integer number (212071561245).

Almost surely, 2^424143122489 is an apocalyptic number.

It is an amenable number.

424143122489 is a deficient number, since it is larger than the sum of its proper divisors (1).

424143122489 is an equidigital number, since it uses as much as digits as its factorization.

424143122489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 44.

The spelling of 424143122489 in words is "four hundred twenty-four billion, one hundred forty-three million, one hundred twenty-two thousand, four hundred eighty-nine".