7668228317 has 4 divisors (see below), whose sum is σ = 7668643356. Its totient is φ = 7667813280.

The previous prime is 7668228257. The next prime is 7668228391. The reversal of 7668228317 is 7138228667.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7187478841 + 480749476 = 84779^2 + 21926^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668228317 - 2¹⁰ = 7668227293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668128317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178448 + ... + 217209.

It is an arithmetic number, because the mean of its divisors is an integer number (1917160839).

Almost surely, 2^7668228317 is an apocalyptic number.

It is an amenable number.

7668228317 is a deficient number, since it is larger than the sum of its proper divisors (415039).

7668228317 is a wasteful number, since it uses less digits than its factorization.

7668228317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415038.

The product of its digits is 1354752, while the sum is 50.

The square root of 7668228317 is about 87568.4207748433. The cubic root of 7668228317 is about 1971.9611069554.

The spelling of 7668228317 in words is "seven billion, six hundred sixty-eight million, two hundred twenty-eight thousand, three hundred seventeen".