6815196911 has 2 divisors, whose sum is σ = 6815196912. Its totient is φ = 6815196910.

The previous prime is 6815196889. The next prime is 6815196917. The reversal of 6815196911 is 1196915186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6815196911 - 2³⁰ = 5741455087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6815196917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407598455 + 3407598456.

It is an arithmetic number, because the mean of its divisors is an integer number (3407598456).

Almost surely, 2^6815196911 is an apocalyptic number.

6815196911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6815196911 is an equidigital number, since it uses as much as digits as its factorization.

6815196911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 47.

The square root of 6815196911 is about 82554.2058952783. The cubic root of 6815196911 is about 1895.9467528494.

The spelling of 6815196911 in words is "six billion, eight hundred fifteen million, one hundred ninety-six thousand, nine hundred eleven".