422323143439 has 2 divisors, whose sum is σ = 422323143440. Its totient is φ = 422323143438.

The previous prime is 422323143427. The next prime is 422323143461. The reversal of 422323143439 is 934341323224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422323143439 - 2³¹ = 420175659791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422323143409) 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, 211161571719 + 211161571720.

It is an arithmetic number, because the mean of its divisors is an integer number (211161571720).

Almost surely, 2^422323143439 is an apocalyptic number.

422323143439 is a deficient number, since it is larger than the sum of its proper divisors (1).

422323143439 is an equidigital number, since it uses as much as digits as its factorization.

422323143439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 40.

The spelling of 422323143439 in words is "four hundred twenty-two billion, three hundred twenty-three million, one hundred forty-three thousand, four hundred thirty-nine".