5168855205217 has 4 divisors (see below), whose sum is σ = 5638751132976. Its totient is φ = 4698959277460.

The previous prime is 5168855205209. The next prime is 5168855205221. The reversal of 5168855205217 is 7125025588615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5168855205217 - 2³ = 5168855205209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5168855205517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234947963863 + ... + 234947963884.

It is an arithmetic number, because the mean of its divisors is an integer number (1409687783244).

Almost surely, 2^{5168855205217} is an apocalyptic number.

It is an amenable number.

5168855205217 is a deficient number, since it is larger than the sum of its proper divisors (469895927759).

5168855205217 is a wasteful number, since it uses less digits than its factorization.

5168855205217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469895927758.

The product of its (nonzero) digits is 6720000, while the sum is 55.

The spelling of 5168855205217 in words is "five trillion, one hundred sixty-eight billion, eight hundred fifty-five million, two hundred five thousand, two hundred seventeen".