6819809203 has 2 divisors, whose sum is σ = 6819809204. Its totient is φ = 6819809202.

The previous prime is 6819809201. The next prime is 6819809219. The reversal of 6819809203 is 3029089186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6819809203 - 2¹ = 6819809201 is a prime.

Together with 6819809201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6819809201) 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, 3409904601 + 3409904602.

It is an arithmetic number, because the mean of its divisors is an integer number (3409904602).

Almost surely, 2^6819809203 is an apocalyptic number.

6819809203 is a deficient number, since it is larger than the sum of its proper divisors (1).

6819809203 is an equidigital number, since it uses as much as digits as its factorization.

6819809203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 6819809203 is about 82582.1361009753. The cubic root of 6819809203 is about 1896.3743603566.

The spelling of 6819809203 in words is "six billion, eight hundred nineteen million, eight hundred nine thousand, two hundred three".