2117882993 has 4 divisors (see below), whose sum is σ = 2137676400. Its totient is φ = 2098089588.

The previous prime is 2117882983. The next prime is 2117883043. The reversal of 2117882993 is 3992887112.

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 2117882993 - 2⁶ = 2117882929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2117882953) 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, 9896543 + ... + 9896756.

It is an arithmetic number, because the mean of its divisors is an integer number (534419100).

Almost surely, 2^2117882993 is an apocalyptic number.

It is an amenable number.

2117882993 is a deficient number, since it is larger than the sum of its proper divisors (19793407).

2117882993 is a wasteful number, since it uses less digits than its factorization.

2117882993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19793406.

The product of its digits is 435456, while the sum is 50.

The square root of 2117882993 is about 46020.4627638619. The cubic root of 2117882993 is about 1284.2039092912.

The spelling of 2117882993 in words is "two billion, one hundred seventeen million, eight hundred eighty-two thousand, nine hundred ninety-three".