6543500712443 has 2 divisors, whose sum is σ = 6543500712444. Its totient is φ = 6543500712442.

The previous prime is 6543500712409. The next prime is 6543500712457. The reversal of 6543500712443 is 3442170053456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6543500712443 - 2⁸ = 6543500712187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6543500712394 and 6543500712403.

It is not a weakly prime, because it can be changed into another prime (6543500717443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271750356221 + 3271750356222.

It is an arithmetic number, because the mean of its divisors is an integer number (3271750356222).

Almost surely, 2^{6543500712443} is an apocalyptic number.

6543500712443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543500712443 is an equidigital number, since it uses as much as digits as its factorization.

6543500712443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 44.

Adding to 6543500712443 its reverse (3442170053456), we get a palindrome (9985670765899).

The spelling of 6543500712443 in words is "six trillion, five hundred forty-three billion, five hundred million, seven hundred twelve thousand, four hundred forty-three".