8666406969 has 16 divisors (see below), whose sum is σ = 13153757184. Its totient is φ = 5024003600.

The previous prime is 8666406961. The next prime is 8666407037. The reversal of 8666406969 is 9696046668.

8666406969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8666406969 - 2³ = 8666406961 is a prime.

It is a super-3 number, since 3×8666406969³ (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 (8666406961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5708337 + ... + 5709854.

It is an arithmetic number, because the mean of its divisors is an integer number (822109824).

Almost surely, 2^8666406969 is an apocalyptic number.

It is an amenable number.

8666406969 is a deficient number, since it is larger than the sum of its proper divisors (4487350215).

8666406969 is a wasteful number, since it uses less digits than its factorization.

8666406969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11418228.

The product of its (nonzero) digits is 20155392, while the sum is 60.

The square root of 8666406969 is about 93093.5388144634. The cubic root of 8666406969 is about 2054.0595321295.

The spelling of 8666406969 in words is "eight billion, six hundred sixty-six million, four hundred six thousand, nine hundred sixty-nine".