4445544199 has 2 divisors, whose sum is σ = 4445544200. Its totient is φ = 4445544198.

The previous prime is 4445544197. The next prime is 4445544203. The reversal of 4445544199 is 9914455444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4445544199 - 2¹ = 4445544197 is a prime.

Together with 4445544197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4445544193) 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, 2222772099 + 2222772100.

It is an arithmetic number, because the mean of its divisors is an integer number (2222772100).

Almost surely, 2^4445544199 is an apocalyptic number.

4445544199 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445544199 is an equidigital number, since it uses as much as digits as its factorization.

4445544199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 49.

The square root of 4445544199 is about 66674.9143156555. The cubic root of 4445544199 is about 1644.2769831013.

The spelling of 4445544199 in words is "four billion, four hundred forty-five million, five hundred forty-four thousand, one hundred ninety-nine".