6345326909 has 2 divisors, whose sum is σ = 6345326910. Its totient is φ = 6345326908.

The previous prime is 6345326903. The next prime is 6345326921. The reversal of 6345326909 is 9096235436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5176370809 + 1168956100 = 71947^2 + 34190^2 .

It is a cyclic number.

It is not a de Polignac number, because 6345326909 - 2¹² = 6345322813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6345326903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172663454 + 3172663455.

It is an arithmetic number, because the mean of its divisors is an integer number (3172663455).

Almost surely, 2^6345326909 is an apocalyptic number.

It is an amenable number.

6345326909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6345326909 is an equidigital number, since it uses as much as digits as its factorization.

6345326909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 47.

The square root of 6345326909 is about 79657.5602752181. The cubic root of 6345326909 is about 1851.3335317288. Note that the first 3 decimals are identical.

The spelling of 6345326909 in words is "six billion, three hundred forty-five million, three hundred twenty-six thousand, nine hundred nine".