2184936189 has 4 divisors (see below), whose sum is σ = 2913248256. Its totient is φ = 1456624124.

The previous prime is 2184936181. The next prime is 2184936211. The reversal of 2184936189 is 9816394812.

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 2184936189 - 2³ = 2184936181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184936181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364156029 + ... + 364156034.

It is an arithmetic number, because the mean of its divisors is an integer number (728312064).

Almost surely, 2^2184936189 is an apocalyptic number.

It is an amenable number.

2184936189 is a deficient number, since it is larger than the sum of its proper divisors (728312067).

2184936189 is an equidigital number, since it uses as much as digits as its factorization.

2184936189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728312066.

The product of its digits is 746496, while the sum is 51.

The square root of 2184936189 is about 46743.3010066683. The cubic root of 2184936189 is about 1297.6161815471.

The spelling of 2184936189 in words is "two billion, one hundred eighty-four million, nine hundred thirty-six thousand, one hundred eighty-nine".