889372845209 has 4 divisors (see below), whose sum is σ = 897532229220. Its totient is φ = 881213461200.

The previous prime is 889372845197. The next prime is 889372845217. The reversal of 889372845209 is 902548273988.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 671657285209 + 217715560000 = 819547^2 + 466600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889372845209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889372841209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079691842 + ... + 4079692059.

It is an arithmetic number, because the mean of its divisors is an integer number (224383057305).

Almost surely, 2^889372845209 is an apocalyptic number.

It is an amenable number.

889372845209 is a deficient number, since it is larger than the sum of its proper divisors (8159384011).

889372845209 is a wasteful number, since it uses less digits than its factorization.

889372845209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159384010.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 889372845209 in words is "eight hundred eighty-nine billion, three hundred seventy-two million, eight hundred forty-five thousand, two hundred nine".