289143873569 has 4 divisors (see below), whose sum is σ = 289145200944. Its totient is φ = 289142546196.

The previous prime is 289143873563. The next prime is 289143873581. The reversal of 289143873569 is 965378341982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289143873569 - 2⁴ = 289143873553 is a prime.

It is a super-2 number, since 2×289143873569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289143873563) 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 3 ways as a sum of consecutive naturals, for example, 251687 + ... + 801020.

It is an arithmetic number, because the mean of its divisors is an integer number (72286300236).

Almost surely, 2^289143873569 is an apocalyptic number.

It is an amenable number.

289143873569 is a deficient number, since it is larger than the sum of its proper divisors (1327375).

289143873569 is a wasteful number, since it uses less digits than its factorization.

289143873569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327374.

The product of its digits is 78382080, while the sum is 65.

The spelling of 289143873569 in words is "two hundred eighty-nine billion, one hundred forty-three million, eight hundred seventy-three thousand, five hundred sixty-nine".