6698345189 has 2 divisors, whose sum is σ = 6698345190. Its totient is φ = 6698345188.

The previous prime is 6698345153. The next prime is 6698345231. The reversal of 6698345189 is 9815438966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6397600225 + 300744964 = 79985^2 + 17342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6698345189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6698341189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349172594 + 3349172595.

It is an arithmetic number, because the mean of its divisors is an integer number (3349172595).

Almost surely, 2^6698345189 is an apocalyptic number.

It is an amenable number.

6698345189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6698345189 is an equidigital number, since it uses as much as digits as its factorization.

6698345189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 59.

The square root of 6698345189 is about 81843.4187274701. The cubic root of 6698345189 is about 1885.0484114897.

The spelling of 6698345189 in words is "six billion, six hundred ninety-eight million, three hundred forty-five thousand, one hundred eighty-nine".