5668172197 has 4 divisors (see below), whose sum is σ = 5668365996. Its totient is φ = 5667978400.

The previous prime is 5668172189. The next prime is 5668172203. The reversal of 5668172197 is 7912718665.

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 2759295841 + 2908876356 = 52529^2 + 53934^2 .

It is a cyclic number.

It is not a de Polignac number, because 5668172197 - 2³ = 5668172189 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 (5668172137) 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, 43054 + ... + 114847.

It is an arithmetic number, because the mean of its divisors is an integer number (1417091499).

Almost surely, 2^5668172197 is an apocalyptic number.

It is an amenable number.

5668172197 is a deficient number, since it is larger than the sum of its proper divisors (193799).

5668172197 is a wasteful number, since it uses less digits than its factorization.

5668172197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193798.

The product of its digits is 1270080, while the sum is 52.

The square root of 5668172197 is about 75287.2645073521. The cubic root of 5668172197 is about 1782.9849546824.

The spelling of 5668172197 in words is "five billion, six hundred sixty-eight million, one hundred seventy-two thousand, one hundred ninety-seven".