6806917853 has 2 divisors, whose sum is σ = 6806917854. Its totient is φ = 6806917852.

The previous prime is 6806917841. The next prime is 6806917883. The reversal of 6806917853 is 3587196086.

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., 5329438009 + 1477479844 = 73003^2 + 38438^2 .

It is a cyclic number.

It is not a de Polignac number, because 6806917853 - 2¹⁶ = 6806852317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6806917795 and 6806917804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6806917883) 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, 3403458926 + 3403458927.

It is an arithmetic number, because the mean of its divisors is an integer number (3403458927).

Almost surely, 2^6806917853 is an apocalyptic number.

It is an amenable number.

6806917853 is a deficient number, since it is larger than the sum of its proper divisors (1).

6806917853 is an equidigital number, since it uses as much as digits as its factorization.

6806917853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 6806917853 is about 82504.0474946533. The cubic root of 6806917853 is about 1895.1787137306.

The spelling of 6806917853 in words is "six billion, eight hundred six million, nine hundred seventeen thousand, eight hundred fifty-three".