12843416543 has 2 divisors, whose sum is σ = 12843416544. Its totient is φ = 12843416542.

The previous prime is 12843416533. The next prime is 12843416563. The reversal of 12843416543 is 34561434821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12843416543 - 2²⁶ = 12776307679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12843416543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12843416533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421708271 + 6421708272.

It is an arithmetic number, because the mean of its divisors is an integer number (6421708272).

Almost surely, 2^12843416543 is an apocalyptic number.

12843416543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12843416543 is an equidigital number, since it uses as much as digits as its factorization.

12843416543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The spelling of 12843416543 in words is "twelve billion, eight hundred forty-three million, four hundred sixteen thousand, five hundred forty-three".