6818897117 has 8 divisors (see below), whose sum is σ = 6854232960. Its totient is φ = 6783652480.

The previous prime is 6818897039. The next prime is 6818897119. The reversal of 6818897117 is 7117988186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6818897117 - 2²⁸ = 6550461661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818897119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129734 + ... + 174552.

It is an arithmetic number, because the mean of its divisors is an integer number (856779120).

Almost surely, 2^6818897117 is an apocalyptic number.

It is an amenable number.

6818897117 is a deficient number, since it is larger than the sum of its proper divisors (35335843).

6818897117 is a wasteful number, since it uses less digits than its factorization.

6818897117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603.

The product of its digits is 1354752, while the sum is 56.

The square root of 6818897117 is about 82576.6136203223. The cubic root of 6818897117 is about 1896.2898157812.

The spelling of 6818897117 in words is "six billion, eight hundred eighteen million, eight hundred ninety-seven thousand, one hundred seventeen".