2184736848121 has 4 divisors (see below), whose sum is σ = 2185699713700. Its totient is φ = 2183773982544.

The previous prime is 2184736848109. The next prime is 2184736848127. The reversal of 2184736848121 is 1218486374812.

It is a happy number.

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 658118450025 + 1526618398096 = 811245^2 + 1235564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2184736848121 - 2⁵ = 2184736848089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2184736848127) 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, 481429386 + ... + 481433923.

It is an arithmetic number, because the mean of its divisors is an integer number (546424928425).

Almost surely, 2^{2184736848121} is an apocalyptic number.

It is an amenable number.

2184736848121 is a deficient number, since it is larger than the sum of its proper divisors (962865579).

2184736848121 is an equidigital number, since it uses as much as digits as its factorization.

2184736848121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962865578.

The product of its digits is 4128768, while the sum is 55.

The spelling of 2184736848121 in words is "two trillion, one hundred eighty-four billion, seven hundred thirty-six million, eight hundred forty-eight thousand, one hundred twenty-one".