2117196693 has 6 divisors (see below), whose sum is σ = 3058173014. Its totient is φ = 1411464456.

The previous prime is 2117196691. The next prime is 2117196701. The reversal of 2117196693 is 3966917112.

It can be written as a sum of positive squares in only one way, i.e., 1481249169 + 635947524 = 38487^2 + 25218^2 .

It is not a de Polignac number, because 2117196693 - 2¹ = 2117196691 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 (2117196691) 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 5 ways as a sum of consecutive naturals, for example, 117622030 + ... + 117622047.

Almost surely, 2^2117196693 is an apocalyptic number.

It is an amenable number.

2117196693 is a deficient number, since it is larger than the sum of its proper divisors (940976321).

2117196693 is a wasteful number, since it uses less digits than its factorization.

2117196693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235244083 (or 235244080 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 2117196693 is about 46013.0056940426. The cubic root of 2117196693 is about 1284.0651788761.

The spelling of 2117196693 in words is "two billion, one hundred seventeen million, one hundred ninety-six thousand, six hundred ninety-three".