2068406635 has 4 divisors (see below), whose sum is σ = 2482087968. Its totient is φ = 1654725304.

The previous prime is 2068406611. The next prime is 2068406653. The reversal of 2068406635 is 5366048602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2068406635 - 2⁵ = 2068406603 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 206840659 + ... + 206840668.

It is an arithmetic number, because the mean of its divisors is an integer number (620521992).

Almost surely, 2^2068406635 is an apocalyptic number.

2068406635 is a deficient number, since it is larger than the sum of its proper divisors (413681333).

2068406635 is an equidigital number, since it uses as much as digits as its factorization.

2068406635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413681332.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 2068406635 is about 45479.7387305600. The cubic root of 2068406635 is about 1274.1248147460.

The spelling of 2068406635 in words is "two billion, sixty-eight million, four hundred six thousand, six hundred thirty-five".