6810853897 has 4 divisors (see below), whose sum is σ = 6878288196. Its totient is φ = 6743419600.

The previous prime is 6810853891. The next prime is 6810853919. The reversal of 6810853897 is 7983580186.

6810853897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5787557776 + 1023296121 = 76076^2 + 31989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6810853897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6810853891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33716998 + ... + 33717199.

It is an arithmetic number, because the mean of its divisors is an integer number (1719572049).

Almost surely, 2^6810853897 is an apocalyptic number.

It is an amenable number.

6810853897 is a deficient number, since it is larger than the sum of its proper divisors (67434299).

6810853897 is a wasteful number, since it uses less digits than its factorization.

6810853897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67434298.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 6810853897 is about 82527.8976892057. The cubic root of 6810853897 is about 1895.5439338213.

The spelling of 6810853897 in words is "six billion, eight hundred ten million, eight hundred fifty-three thousand, eight hundred ninety-seven".