2118284573 has 4 divisors (see below), whose sum is σ = 2118377280. Its totient is φ = 2118191868.

The previous prime is 2118284563. The next prime is 2118284587. The reversal of 2118284573 is 3754828112.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2118284573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2118284573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118284543) 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, 14918 + ... + 66776.

It is an arithmetic number, because the mean of its divisors is an integer number (529594320).

Almost surely, 2^2118284573 is an apocalyptic number.

It is an amenable number.

2118284573 is a deficient number, since it is larger than the sum of its proper divisors (92707).

2118284573 is an equidigital number, since it uses as much as digits as its factorization.

2118284573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92706.

The product of its digits is 107520, while the sum is 41.

The square root of 2118284573 is about 46024.8256161824. The cubic root of 2118284573 is about 1284.2850717879.

The spelling of 2118284573 in words is "two billion, one hundred eighteen million, two hundred eighty-four thousand, five hundred seventy-three".