6815671163 has 4 divisors (see below), whose sum is σ = 7789338480. Its totient is φ = 5842003848.

The previous prime is 6815671153. The next prime is 6815671217. The reversal of 6815671163 is 3611765186.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6815671163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6815671133) 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, 486833648 + ... + 486833661.

It is an arithmetic number, because the mean of its divisors is an integer number (1947334620).

Almost surely, 2^6815671163 is an apocalyptic number.

6815671163 is a deficient number, since it is larger than the sum of its proper divisors (973667317).

6815671163 is an equidigital number, since it uses as much as digits as its factorization.

6815671163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973667316.

The product of its digits is 181440, while the sum is 44.

The square root of 6815671163 is about 82557.0782125918. The cubic root of 6815671163 is about 1895.9907298465.

The spelling of 6815671163 in words is "six billion, eight hundred fifteen million, six hundred seventy-one thousand, one hundred sixty-three".