6543500717443 has 2 divisors, whose sum is σ = 6543500717444. Its totient is φ = 6543500717442.

The previous prime is 6543500717407. The next prime is 6543500717497. The reversal of 6543500717443 is 3447170053456.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6543500717443 is a prime.

It is not a weakly prime, because it can be changed into another prime (6543500712443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271750358721 + 3271750358722.

It is an arithmetic number, because the mean of its divisors is an integer number (3271750358722).

Almost surely, 2^{6543500717443} is an apocalyptic number.

6543500717443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543500717443 is an equidigital number, since it uses as much as digits as its factorization.

6543500717443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 6543500717443 in words is "six trillion, five hundred forty-three billion, five hundred million, seven hundred seventeen thousand, four hundred forty-three".