10866305489 has 8 divisors (see below), whose sum is σ = 11709110952. Its totient is φ = 10024490880.

The previous prime is 10866305477. The next prime is 10866305519. The reversal of 10866305489 is 98450366801.

It can be written as a sum of positive squares in 4 ways, for example, as 1997374864 + 8868930625 = 44692^2 + 94175^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10866305489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10866305419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224852 + ... + 268869.

It is an arithmetic number, because the mean of its divisors is an integer number (1463638869).

Almost surely, 2^10866305489 is an apocalyptic number.

It is an amenable number.

10866305489 is a deficient number, since it is larger than the sum of its proper divisors (842805463).

10866305489 is a wasteful number, since it uses less digits than its factorization.

10866305489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495427.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 10866305489 in words is "ten billion, eight hundred sixty-six million, three hundred five thousand, four hundred eighty-nine".