6326819809 has 2 divisors, whose sum is σ = 6326819810. Its totient is φ = 6326819808.

The previous prime is 6326819803. The next prime is 6326819893. The reversal of 6326819809 is 9089186236.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6324702784 + 2117025 = 79528^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 6326819809 - 2²⁷ = 6192602081 is a prime.

It is not a weakly prime, because it can be changed into another prime (6326819803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163409904 + 3163409905.

It is an arithmetic number, because the mean of its divisors is an integer number (3163409905).

Almost surely, 2^6326819809 is an apocalyptic number.

It is an amenable number.

6326819809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6326819809 is an equidigital number, since it uses as much as digits as its factorization.

6326819809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 6326819809 is about 79541.3088212659. The cubic root of 6326819809 is about 1849.5318814613.

The spelling of 6326819809 in words is "six billion, three hundred twenty-six million, eight hundred nineteen thousand, eight hundred nine".