4385642399 has 2 divisors, whose sum is σ = 4385642400. Its totient is φ = 4385642398.

The previous prime is 4385642347. The next prime is 4385642423. The reversal of 4385642399 is 9932465834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4385642399 - 2²⁴ = 4368865183 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4385642399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4385642329) 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, 2192821199 + 2192821200.

It is an arithmetic number, because the mean of its divisors is an integer number (2192821200).

Almost surely, 2^4385642399 is an apocalyptic number.

4385642399 is a deficient number, since it is larger than the sum of its proper divisors (1).

4385642399 is an equidigital number, since it uses as much as digits as its factorization.

4385642399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 53.

The square root of 4385642399 is about 66224.1828866163. The cubic root of 4385642399 is about 1636.8582523754.

The spelling of 4385642399 in words is "four billion, three hundred eighty-five million, six hundred forty-two thousand, three hundred ninety-nine".