2163836806 has 8 divisors (see below), whose sum is σ = 3436682040. Its totient is φ = 1018276128.

The previous prime is 2163836791. The next prime is 2163836813. The reversal of 2163836806 is 6086383612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31821096 + ... + 31821163.

It is an arithmetic number, because the mean of its divisors is an integer number (429585255).

Almost surely, 2^2163836806 is an apocalyptic number.

2163836806 is a deficient number, since it is larger than the sum of its proper divisors (1272845234).

2163836806 is a wasteful number, since it uses less digits than its factorization.

2163836806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63642278.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 2163836806 is about 46517.0593008629. The cubic root of 2163836806 is about 1293.4257453512.

The spelling of 2163836806 in words is "two billion, one hundred sixty-three million, eight hundred thirty-six thousand, eight hundred six".