2117048821 has 8 divisors (see below), whose sum is σ = 2138029344. Its totient is φ = 2096090640.

The previous prime is 2117048789. The next prime is 2117048827. The reversal of 2117048821 is 1288407112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117048821 - 2⁵ = 2117048789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117048827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235591 + ... + 244411.

It is an arithmetic number, because the mean of its divisors is an integer number (267253668).

Almost surely, 2^2117048821 is an apocalyptic number.

It is an amenable number.

2117048821 is a deficient number, since it is larger than the sum of its proper divisors (20980523).

2117048821 is a wasteful number, since it uses less digits than its factorization.

2117048821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11171.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 2117048821 is about 46011.3988159456. The cubic root of 2117048821 is about 1284.0352837310.

The spelling of 2117048821 in words is "two billion, one hundred seventeen million, forty-eight thousand, eight hundred twenty-one".