2685775863 has 8 divisors (see below), whose sum is σ = 3614502528. Its totient is φ = 1773783224.

The previous prime is 2685775853. The next prime is 2685775907. The reversal of 2685775863 is 3685775862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2685775863 - 2⁵ = 2685775831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685775823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4183131 + ... + 4183772.

It is an arithmetic number, because the mean of its divisors is an integer number (451812816).

Almost surely, 2^2685775863 is an apocalyptic number.

2685775863 is a deficient number, since it is larger than the sum of its proper divisors (928726665).

2685775863 is a wasteful number, since it uses less digits than its factorization.

2685775863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367013.

The product of its digits is 16934400, while the sum is 57.

The square root of 2685775863 is about 51824.4716615616. The cubic root of 2685775863 is about 1390.0270620820.

Subtracting 2685775863 from its reverse (3685775862), we obtain a palindrome (999999999).

The spelling of 2685775863 in words is "two billion, six hundred eighty-five million, seven hundred seventy-five thousand, eight hundred sixty-three".