6698919953189 has 2 divisors, whose sum is σ = 6698919953190. Its totient is φ = 6698919953188.

The previous prime is 6698919953179. The next prime is 6698919953281. The reversal of 6698919953189 is 9813599198966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4221340068100 + 2477579885089 = 2054590^2 + 1574033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6698919953189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6698919953119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349459976594 + 3349459976595.

It is an arithmetic number, because the mean of its divisors is an integer number (3349459976595).

Almost surely, 2^{6698919953189} is an apocalyptic number.

It is an amenable number.

6698919953189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6698919953189 is an equidigital number, since it uses as much as digits as its factorization.

6698919953189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2040733440, while the sum is 83.

The spelling of 6698919953189 in words is "six trillion, six hundred ninety-eight billion, nine hundred nineteen million, nine hundred fifty-three thousand, one hundred eighty-nine".