2117271517 has 8 divisors (see below), whose sum is σ = 2235879360. Its totient is φ = 1999380960.

The previous prime is 2117271467. The next prime is 2117271677. The reversal of 2117271517 is 7151727112.

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 2117271517 - 2¹⁵ = 2117238749 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 (2117274517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173248 + ... + 185065.

It is an arithmetic number, because the mean of its divisors is an integer number (279484920).

Almost surely, 2^2117271517 is an apocalyptic number.

It is an amenable number.

2117271517 is a deficient number, since it is larger than the sum of its proper divisors (118607843).

2117271517 is a wasteful number, since it uses less digits than its factorization.

2117271517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358643.

The product of its digits is 6860, while the sum is 34.

The square root of 2117271517 is about 46013.8187613243. The cubic root of 2117271517 is about 1284.0803054444.

Adding to 2117271517 its reverse (7151727112), we get a palindrome (9268998629).

The spelling of 2117271517 in words is "two billion, one hundred seventeen million, two hundred seventy-one thousand, five hundred seventeen".