9686666869 has 8 divisors (see below), whose sum is σ = 10580029920. Its totient is φ = 8795430000.

The previous prime is 9686666851. The next prime is 9686666897.

9686666869 is nontrivially palindromic in base 10.

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 9686666869 - 2⁹ = 9686666357 is a prime.

It is a super-2 number, since 2×9686666869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9686666798 and 9686666807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9686666819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522007 + ... + 540244.

It is an arithmetic number, because the mean of its divisors is an integer number (1322503740).

Almost surely, 2^9686666869 is an apocalyptic number.

It is an amenable number.

9686666869 is a deficient number, since it is larger than the sum of its proper divisors (893363051).

9686666869 is a wasteful number, since it uses less digits than its factorization.

9686666869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063091.

The product of its digits is 241864704, while the sum is 70.

The square root of 9686666869 is about 98420.8660244361. The cubic root of 9686666869 is about 2131.6936333256.

The spelling of 9686666869 in words is "nine billion, six hundred eighty-six million, six hundred sixty-six thousand, eight hundred sixty-nine".