8668668607 has 4 divisors (see below), whose sum is σ = 8676347920. Its totient is φ = 8660989296.

The previous prime is 8668668529. The next prime is 8668668647. The reversal of 8668668607 is 7068668668.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8668668607 is a prime.

It is a super-3 number, since 3×8668668607³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668668647) 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, 3837963 + ... + 3840220.

It is an arithmetic number, because the mean of its divisors is an integer number (2169086980).

Almost surely, 2^8668668607 is an apocalyptic number.

8668668607 is a deficient number, since it is larger than the sum of its proper divisors (7679313).

8668668607 is a wasteful number, since it uses less digits than its factorization.

8668668607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679312.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The square root of 8668668607 is about 93105.6851486524. The cubic root of 8668668607 is about 2054.2381965233.

Adding to 8668668607 its sum of digits (61), we get a palindrome (8668668668).

The spelling of 8668668607 in words is "eight billion, six hundred sixty-eight million, six hundred sixty-eight thousand, six hundred seven".