2195486806 has 4 divisors (see below), whose sum is σ = 3293230212. Its totient is φ = 1097743402.

The previous prime is 2195486767. The next prime is 2195486857. The reversal of 2195486806 is 6086845912.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2195486806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548871700 + ... + 548871703.

It is an arithmetic number, because the mean of its divisors is an integer number (823307553).

Almost surely, 2^2195486806 is an apocalyptic number.

2195486806 is a deficient number, since it is larger than the sum of its proper divisors (1097743406).

2195486806 is a wasteful number, since it uses less digits than its factorization.

2195486806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097743405.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2195486806 is about 46856.0220889482. The cubic root of 2195486806 is about 1299.7014710968.

The spelling of 2195486806 in words is "two billion, one hundred ninety-five million, four hundred eighty-six thousand, eight hundred six".