6543817118219 has 2 divisors, whose sum is σ = 6543817118220. Its totient is φ = 6543817118218.

The previous prime is 6543817118183. The next prime is 6543817118281. The reversal of 6543817118219 is 9128117183456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6543817118219 - 2¹² = 6543817114123 is a prime.

It is a super-2 number, since 2×6543817118219² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6543817118119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271908559109 + 3271908559110.

It is an arithmetic number, because the mean of its divisors is an integer number (3271908559110).

Almost surely, 2^{6543817118219} is an apocalyptic number.

6543817118219 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543817118219 is an equidigital number, since it uses as much as digits as its factorization.

6543817118219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 56.

The spelling of 6543817118219 in words is "six trillion, five hundred forty-three billion, eight hundred seventeen million, one hundred eighteen thousand, two hundred nineteen".