6818859195 has 16 divisors (see below), whose sum is σ = 10913559072. Its totient is φ = 3635596800.

The previous prime is 6818859193. The next prime is 6818859209. The reversal of 6818859195 is 5919588186.

It is not a de Polignac number, because 6818859195 - 2¹ = 6818859193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6818859191) 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 in 15 ways as a sum of consecutive naturals, for example, 19342 + ... + 118371.

It is an arithmetic number, because the mean of its divisors is an integer number (682097442).

Almost surely, 2^6818859195 is an apocalyptic number.

6818859195 is a deficient number, since it is larger than the sum of its proper divisors (4094699877).

6818859195 is a wasteful number, since it uses less digits than its factorization.

6818859195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141022.

The product of its digits is 6220800, while the sum is 60.

The square root of 6818859195 is about 82576.3840029339. The cubic root of 6818859195 is about 1896.2863004896.

The spelling of 6818859195 in words is "six billion, eight hundred eighteen million, eight hundred fifty-nine thousand, one hundred ninety-five".