6442022399 has 2 divisors, whose sum is σ = 6442022400. Its totient is φ = 6442022398.

The previous prime is 6442022393. The next prime is 6442022423. The reversal of 6442022399 is 9932202446.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6442022399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6442022393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221011199 + 3221011200.

It is an arithmetic number, because the mean of its divisors is an integer number (3221011200).

Almost surely, 2^6442022399 is an apocalyptic number.

6442022399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442022399 is an equidigital number, since it uses as much as digits as its factorization.

6442022399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 6442022399 is about 80262.2102798073. The cubic root of 6442022399 is about 1860.6902281840.

The spelling of 6442022399 in words is "six billion, four hundred forty-two million, twenty-two thousand, three hundred ninety-nine".