8669285881 has 9 divisors (see below), whose sum is σ = 9210923149. Its totient is φ = 8157838144.

The previous prime is 8669285869. The next prime is 8669285903. The reversal of 8669285881 is 1885829668.

The square root of 8669285881 is 93109.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6551445481 + 2117840400 = 80941^2 + 46020^2 .

It is not a de Polignac number, because 8669285881 - 2⁷ = 8669285753 is a prime.

It is a super-2 number, since 2×8669285881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8669280881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1580115 + ... + 1585591.

Almost surely, 2^8669285881 is an apocalyptic number.

8669285881 is the 93109-th square number.

8669285881 is the 46555-th centered octagonal number.

It is an amenable number.

8669285881 is a deficient number, since it is larger than the sum of its proper divisors (541637268).

8669285881 is an frugal number, since it uses more digits than its factorization.

8669285881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10988 (or 5494 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 61.

The cubic root of 8669285881 is about 2054.2869544041.

The spelling of 8669285881 in words is "eight billion, six hundred sixty-nine million, two hundred eighty-five thousand, eight hundred eighty-one".