8069218389 has 6 divisors (see below), whose sum is σ = 11655537686. Its totient is φ = 5379478920.

The previous prime is 8069218379. The next prime is 8069218403. The reversal of 8069218389 is 9838129608.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7202916900 + 866301489 = 84870^2 + 29433^2 .

It is not a de Polignac number, because 8069218389 - 2²⁵ = 8035663957 is a prime.

It is a super-3 number, since 3×8069218389³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8069218369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448289902 + ... + 448289919.

Almost surely, 2^8069218389 is an apocalyptic number.

It is an amenable number.

8069218389 is a deficient number, since it is larger than the sum of its proper divisors (3586319297).

8069218389 is a wasteful number, since it uses less digits than its factorization.

8069218389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896579827 (or 896579824 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 8069218389 is about 89828.8282735559. The cubic root of 8069218389 is about 2005.7516425314.

The spelling of 8069218389 in words is "eight billion, sixty-nine million, two hundred eighteen thousand, three hundred eighty-nine".