6718197344999 has 16 divisors (see below), whose sum is σ = 7724156129280. Its totient is φ = 5723839652640.

The previous prime is 6718197344983. The next prime is 6718197345019. The reversal of 6718197344999 is 9994437918176.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6718197344999 - 2⁴ = 6718197344983 is a prime.

It is a super-2 number, since 2×6718197344999² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718197346999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242864 + ... + 3673605.

It is an arithmetic number, because the mean of its divisors is an integer number (482759758080).

Almost surely, 2^{6718197344999} is an apocalyptic number.

6718197344999 is a deficient number, since it is larger than the sum of its proper divisors (1005958784281).

6718197344999 is a wasteful number, since it uses less digits than its factorization.

6718197344999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917950.

The product of its digits is 740710656, while the sum is 77.

The spelling of 6718197344999 in words is "six trillion, seven hundred eighteen billion, one hundred ninety-seven million, three hundred forty-four thousand, nine hundred ninety-nine".