8861331689 has 8 divisors (see below), whose sum is σ = 10220147520. Its totient is φ = 7525743696.

The previous prime is 8861331653. The next prime is 8861331691. The reversal of 8861331689 is 9861331688.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8861331689 - 2⁸ = 8861331433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8861331689.

It is not an unprimeable number, because it can be changed into a prime (8861331629) 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 7 ways as a sum of consecutive naturals, for example, 5806139 + ... + 5807664.

It is an arithmetic number, because the mean of its divisors is an integer number (1277518440).

Almost surely, 2^8861331689 is an apocalyptic number.

It is an amenable number.

8861331689 is a deficient number, since it is larger than the sum of its proper divisors (1358815831).

8861331689 is a wasteful number, since it uses less digits than its factorization.

8861331689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613919.

The product of its digits is 1492992, while the sum is 53.

The square root of 8861331689 is about 94134.6465919961. The cubic root of 8861331689 is about 2069.3454556497.

Subtracting 8861331689 from its reverse (9861331688), we obtain a palindrome (999999999).

The spelling of 8861331689 in words is "eight billion, eight hundred sixty-one million, three hundred thirty-one thousand, six hundred eighty-nine".