8195807805 has 16 divisors (see below), whose sum is σ = 13328265984. Its totient is φ = 4299439680.

The previous prime is 8195807779. The next prime is 8195807857. The reversal of 8195807805 is 5087085918.

It is not a de Polignac number, because 8195807805 - 2⁷ = 8195807677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477669 + ... + 4479498.

It is an arithmetic number, because the mean of its divisors is an integer number (833016624).

Almost surely, 2^8195807805 is an apocalyptic number.

It is an amenable number.

8195807805 is a deficient number, since it is larger than the sum of its proper divisors (5132458179).

8195807805 is a wasteful number, since it uses less digits than its factorization.

8195807805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957236.

The product of its (nonzero) digits is 806400, while the sum is 51.

The square root of 8195807805 is about 90530.7008975408. The cubic root of 8195807805 is about 2016.1859708823.

The spelling of 8195807805 in words is "eight billion, one hundred ninety-five million, eight hundred seven thousand, eight hundred five".