9766666679 has 8 divisors (see below), whose sum is σ = 12176623488. Its totient is φ = 7610389560.

The previous prime is 9766666667. The next prime is 9766666697.

9766666679 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 a de Polignac number, because none of the positive numbers 2^k-9766666679 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 (9766666619) 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, 63419837 + ... + 63419990.

It is an arithmetic number, because the mean of its divisors is an integer number (1522077936).

Almost surely, 2^9766666679 is an apocalyptic number.

9766666679 is a deficient number, since it is larger than the sum of its proper divisors (2409956809).

9766666679 is a wasteful number, since it uses less digits than its factorization.

9766666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126839845.

The product of its digits is 185177664, while the sum is 68.

The square root of 9766666679 is about 98826.4472648896. The cubic root of 9766666679 is about 2137.5459304746.

The spelling of 9766666679 in words is "nine billion, seven hundred sixty-six million, six hundred sixty-six thousand, six hundred seventy-nine".