4143442643 has 2 divisors, whose sum is σ = 4143442644. Its totient is φ = 4143442642.

The previous prime is 4143442631. The next prime is 4143442703. The reversal of 4143442643 is 3462443414.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4143442643 - 2¹⁰ = 4143441619 is a prime.

It is not a weakly prime, because it can be changed into another prime (4143442343) 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, 2071721321 + 2071721322.

It is an arithmetic number, because the mean of its divisors is an integer number (2071721322).

Almost surely, 2^4143442643 is an apocalyptic number.

4143442643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4143442643 is an equidigital number, since it uses as much as digits as its factorization.

4143442643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 35.

The square root of 4143442643 is about 64369.5785522944. The cubic root of 4143442643 is about 1606.1537293904.

The spelling of 4143442643 in words is "four billion, one hundred forty-three million, four hundred forty-two thousand, six hundred forty-three".