6884198813 has 2 divisors, whose sum is σ = 6884198814. Its totient is φ = 6884198812.

The previous prime is 6884198791. The next prime is 6884198831. The reversal of 6884198813 is 3188914886.

Together with next prime (6884198831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4621008484 + 2263190329 = 67978^2 + 47573^2 .

It is a cyclic number.

It is not a de Polignac number, because 6884198813 - 2¹² = 6884194717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6884198863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442099406 + 3442099407.

It is an arithmetic number, because the mean of its divisors is an integer number (3442099407).

Almost surely, 2^6884198813 is an apocalyptic number.

It is an amenable number.

6884198813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6884198813 is an equidigital number, since it uses as much as digits as its factorization.

6884198813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 56.

The square root of 6884198813 is about 82971.0721456581. The cubic root of 6884198813 is about 1902.3239166293.

The spelling of 6884198813 in words is "six billion, eight hundred eighty-four million, one hundred ninety-eight thousand, eight hundred thirteen".