289104047781121 has 4 divisors (see below), whose sum is σ = 306110168238852. Its totient is φ = 272097927323392.

The previous prime is 289104047781103. The next prime is 289104047781179. The reversal of 289104047781121 is 121187740401982.

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 185758118334721 + 103345929446400 = 13629311^2 + 10165920^2 .

It is a cyclic number.

It is not a de Polignac number, because 289104047781121 - 2⁵ = 289104047781089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289104047781221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8503060228840 + ... + 8503060228873.

It is an arithmetic number, because the mean of its divisors is an integer number (76527542059713).

Almost surely, 2^{289104047781121} is an apocalyptic number.

It is an amenable number.

289104047781121 is a deficient number, since it is larger than the sum of its proper divisors (17006120457731).

289104047781121 is a wasteful number, since it uses less digits than its factorization.

289104047781121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006120457730.

The product of its (nonzero) digits is 1806336, while the sum is 55.

The spelling of 289104047781121 in words is "two hundred eighty-nine trillion, one hundred four billion, forty-seven million, seven hundred eighty-one thousand, one hundred twenty-one".