8543022643 has 2 divisors, whose sum is σ = 8543022644. Its totient is φ = 8543022642.

The previous prime is 8543022637. The next prime is 8543022679. The reversal of 8543022643 is 3462203458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8543022643 - 2²⁵ = 8509468211 is a prime.

It is not a weakly prime, because it can be changed into another prime (8543022343) 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, 4271511321 + 4271511322.

It is an arithmetic number, because the mean of its divisors is an integer number (4271511322).

Almost surely, 2^8543022643 is an apocalyptic number.

8543022643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8543022643 is an equidigital number, since it uses as much as digits as its factorization.

8543022643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 8543022643 is about 92428.4731184065. The cubic root of 8543022643 is about 2044.2649656412.

The spelling of 8543022643 in words is "eight billion, five hundred forty-three million, twenty-two thousand, six hundred forty-three".