2685775853 has 2 divisors, whose sum is σ = 2685775854. Its totient is φ = 2685775852.

The previous prime is 2685775831. The next prime is 2685775907. The reversal of 2685775853 is 3585775862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1885904329 + 799871524 = 43427^2 + 28282^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685775853 - 2⁶ = 2685775789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2685775823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342887926 + 1342887927.

It is an arithmetic number, because the mean of its divisors is an integer number (1342887927).

Almost surely, 2^2685775853 is an apocalyptic number.

It is an amenable number.

2685775853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685775853 is an equidigital number, since it uses as much as digits as its factorization.

2685775853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112000, while the sum is 56.

The square root of 2685775853 is about 51824.4715650821. The cubic root of 2685775853 is about 1390.0270603569.

Subtracting 2685775853 from its reverse (3585775862), we obtain a palindrome (900000009).

The spelling of 2685775853 in words is "two billion, six hundred eighty-five million, seven hundred seventy-five thousand, eight hundred fifty-three".