6442022423 has 2 divisors, whose sum is σ = 6442022424. Its totient is φ = 6442022422.

The previous prime is 6442022399. The next prime is 6442022471. The reversal of 6442022423 is 3242202446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6442022423 - 2⁶ = 6442022359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6442022023) 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, 3221011211 + 3221011212.

It is an arithmetic number, because the mean of its divisors is an integer number (3221011212).

Almost surely, 2^6442022423 is an apocalyptic number.

6442022423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442022423 is an equidigital number, since it uses as much as digits as its factorization.

6442022423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 6442022423 is about 80262.2104293172. The cubic root of 6442022423 is about 1860.6902304947.

Adding to 6442022423 its reverse (3242202446), we get a palindrome (9684224869).

The spelling of 6442022423 in words is "six billion, four hundred forty-two million, twenty-two thousand, four hundred twenty-three".