6718734193 has 2 divisors, whose sum is σ = 6718734194. Its totient is φ = 6718734192.

The previous prime is 6718734161. The next prime is 6718734223. The reversal of 6718734193 is 3914378176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6214641889 + 504092304 = 78833^2 + 22452^2 .

It is a cyclic number.

It is not a de Polignac number, because 6718734193 - 2⁵ = 6718734161 is a prime.

It is a super-2 number, since 2×6718734193² = 90282778312374722498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6718734593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359367096 + 3359367097.

It is an arithmetic number, because the mean of its divisors is an integer number (3359367097).

Almost surely, 2^6718734193 is an apocalyptic number.

It is an amenable number.

6718734193 is a deficient number, since it is larger than the sum of its proper divisors (1).

6718734193 is an equidigital number, since it uses as much as digits as its factorization.

6718734193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 6718734193 is about 81967.8851319222. The cubic root of 6718734193 is about 1886.9590987724.

The spelling of 6718734193 in words is "six billion, seven hundred eighteen million, seven hundred thirty-four thousand, one hundred ninety-three".