2133686306 has 8 divisors (see below), whose sum is σ = 3207922284. Its totient is φ = 1064378880.

The previous prime is 2133686293. The next prime is 2133686311. The reversal of 2133686306 is 6036863312.

It can be written as a sum of positive squares in 2 ways, for example, as 1478787025 + 654899281 = 38455^2 + 25591^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2133686306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231055 + ... + 1232786.

Almost surely, 2^2133686306 is an apocalyptic number.

2133686306 is a deficient number, since it is larger than the sum of its proper divisors (1074235978).

2133686306 is a wasteful number, since it uses less digits than its factorization.

2133686306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464276.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 2133686306 is about 46191.8424183318. The cubic root of 2133686306 is about 1287.3901737594.

The spelling of 2133686306 in words is "two billion, one hundred thirty-three million, six hundred eighty-six thousand, three hundred six".