2859218164489 has 4 divisors (see below), whose sum is σ = 2862554475924. Its totient is φ = 2855881853056.

The previous prime is 2859218164427. The next prime is 2859218164511. The reversal of 2859218164489 is 9844618129582.

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 2773334000889 + 85884163600 = 1665333^2 + 293060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2859218164489 is a prime.

It is a super-2 number, since 2×2859218164489² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2859218164409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668154432 + ... + 1668156145.

It is an arithmetic number, because the mean of its divisors is an integer number (715638618981).

Almost surely, 2^{2859218164489} is an apocalyptic number.

It is an amenable number.

2859218164489 is a deficient number, since it is larger than the sum of its proper divisors (3336311435).

2859218164489 is an equidigital number, since it uses as much as digits as its factorization.

2859218164489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336311434.

The product of its digits is 79626240, while the sum is 67.

The spelling of 2859218164489 in words is "two trillion, eight hundred fifty-nine billion, two hundred eighteen million, one hundred sixty-four thousand, four hundred eighty-nine".