4428668243 has 2 divisors, whose sum is σ = 4428668244. Its totient is φ = 4428668242.

The previous prime is 4428668227. The next prime is 4428668263. The reversal of 4428668243 is 3428668244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4428668243 - 2⁴ = 4428668227 is a prime.

It is a super-2 number, since 2×4428668243² = 39226204813113414098, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4428668203) 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, 2214334121 + 2214334122.

It is an arithmetic number, because the mean of its divisors is an integer number (2214334122).

Almost surely, 2^4428668243 is an apocalyptic number.

4428668243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4428668243 is an equidigital number, since it uses as much as digits as its factorization.

4428668243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1769472, while the sum is 47.

The square root of 4428668243 is about 66548.2399692133. The cubic root of 4428668243 is about 1642.1937036179.

Subtracting from 4428668243 its reverse (3428668244), we obtain a palindrome (999999999).

The spelling of 4428668243 in words is "four billion, four hundred twenty-eight million, six hundred sixty-eight thousand, two hundred forty-three".