6905085855799 has 2 divisors, whose sum is σ = 6905085855800. Its totient is φ = 6905085855798.

The previous prime is 6905085855757. The next prime is 6905085855803. The reversal of 6905085855799 is 9975585805096.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6905085855799 - 2¹⁷ = 6905085724727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6905085855299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3452542927899 + 3452542927900.

It is an arithmetic number, because the mean of its divisors is an integer number (3452542927900).

Almost surely, 2^{6905085855799} is an apocalyptic number.

6905085855799 is a deficient number, since it is larger than the sum of its proper divisors (1).

6905085855799 is an equidigital number, since it uses as much as digits as its factorization.

6905085855799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720000, while the sum is 76.

The spelling of 6905085855799 in words is "six trillion, nine hundred five billion, eighty-five million, eight hundred fifty-five thousand, seven hundred ninety-nine".