6811822819 has 2 divisors, whose sum is σ = 6811822820. Its totient is φ = 6811822818.

The previous prime is 6811822813. The next prime is 6811822859. The reversal of 6811822819 is 9182281186.

It is a happy number.

6811822819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6811822819 - 2⁹ = 6811822307 is a prime.

It is a super-2 number, since 2×6811822819² = 92801860234898213522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6811822813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3405911409 + 3405911410.

It is an arithmetic number, because the mean of its divisors is an integer number (3405911410).

Almost surely, 2^6811822819 is an apocalyptic number.

6811822819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6811822819 is an equidigital number, since it uses as much as digits as its factorization.

6811822819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 46.

The square root of 6811822819 is about 82533.7677499337. The cubic root of 6811822819 is about 1895.6338171732.

The spelling of 6811822819 in words is "six billion, eight hundred eleven million, eight hundred twenty-two thousand, eight hundred nineteen".