2668317215 has 8 divisors (see below), whose sum is σ = 3204416160. Its totient is φ = 2133030112.

The previous prime is 2668317203. The next prime is 2668317217. The reversal of 2668317215 is 5127138662.

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

It is a cyclic number.

It is not a de Polignac number, because 2668317215 - 2⁴ = 2668317199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668317217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 195704 + ... + 208893.

It is an arithmetic number, because the mean of its divisors is an integer number (400552020).

Almost surely, 2^2668317215 is an apocalyptic number.

2668317215 is a deficient number, since it is larger than the sum of its proper divisors (536098945).

2668317215 is a wasteful number, since it uses less digits than its factorization.

2668317215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405921.

The product of its digits is 120960, while the sum is 41.

The square root of 2668317215 is about 51655.7568427760. The cubic root of 2668317215 is about 1387.0085962664.

The spelling of 2668317215 in words is "two billion, six hundred sixty-eight million, three hundred seventeen thousand, two hundred fifteen".