8669378917 has 2 divisors, whose sum is σ = 8669378918. Its totient is φ = 8669378916.

The previous prime is 8669378903. The next prime is 8669378953. The reversal of 8669378917 is 7198739668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4801658436 + 3867720481 = 69294^2 + 62191^2 .

It is a cyclic number.

It is not a de Polignac number, because 8669378917 - 2⁷ = 8669378789 is a prime.

It is a super-3 number, since 3×8669378917³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8669378317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334689458 + 4334689459.

It is an arithmetic number, because the mean of its divisors is an integer number (4334689459).

Almost surely, 2^8669378917 is an apocalyptic number.

It is an amenable number.

8669378917 is a deficient number, since it is larger than the sum of its proper divisors (1).

8669378917 is an equidigital number, since it uses as much as digits as its factorization.

8669378917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 64.

The square root of 8669378917 is about 93109.4996066459. The cubic root of 8669378917 is about 2054.2943030277.

The spelling of 8669378917 in words is "eight billion, six hundred sixty-nine million, three hundred seventy-eight thousand, nine hundred seventeen".