8669378819 has 2 divisors, whose sum is σ = 8669378820. Its totient is φ = 8669378818.

The previous prime is 8669378807. The next prime is 8669378827. The reversal of 8669378819 is 9188739668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8669378819 - 2²⁴ = 8652601603 is a prime.

It is a super-2 number, since 2×8669378819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8669378849) 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 as a sum of consecutive naturals, namely, 4334689409 + 4334689410.

It is an arithmetic number, because the mean of its divisors is an integer number (4334689410).

Almost surely, 2^8669378819 is an apocalyptic number.

8669378819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8669378819 is an equidigital number, since it uses as much as digits as its factorization.

8669378819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 65.

The square root of 8669378819 is about 93109.4990803838. The cubic root of 8669378819 is about 2054.2942952870.

The spelling of 8669378819 in words is "eight billion, six hundred sixty-nine million, three hundred seventy-eight thousand, eight hundred nineteen".