7717605668 has 48 divisors (see below), whose sum is σ = 15149191680. Its totient is φ = 3418661376.

The previous prime is 7717605667. The next prime is 7717605671. The reversal of 7717605668 is 8665067177.

It is a super-3 number, since 3×7717605668³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7717605667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183821 + ... + 221867.

It is an arithmetic number, because the mean of its divisors is an integer number (315608160).

Almost surely, 2^7717605668 is an apocalyptic number.

It is an amenable number.

7717605668 is a deficient number, since it is larger than the sum of its proper divisors (7431586012).

7717605668 is a wasteful number, since it uses less digits than its factorization.

7717605668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38244 (or 38242 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 53.

The square root of 7717605668 is about 87849.9042002893. The cubic root of 7717605668 is about 1976.1846798739.

The spelling of 7717605668 in words is "seven billion, seven hundred seventeen million, six hundred five thousand, six hundred sixty-eight".