5194979197 has 2 divisors, whose sum is σ = 5194979198. Its totient is φ = 5194979196.

The previous prime is 5194979159. The next prime is 5194979219. The reversal of 5194979197 is 7919794915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4811641956 + 383337241 = 69366^2 + 19579^2 .

It is a cyclic number.

It is not a de Polignac number, because 5194979197 - 2²³ = 5186590589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5194976197) 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 as a sum of consecutive naturals, namely, 2597489598 + 2597489599.

It is an arithmetic number, because the mean of its divisors is an integer number (2597489599).

Almost surely, 2^5194979197 is an apocalyptic number.

It is an amenable number.

5194979197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5194979197 is an equidigital number, since it uses as much as digits as its factorization.

5194979197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6429780, while the sum is 61.

The square root of 5194979197 is about 72076.2040967752. The cubic root of 5194979197 is about 1731.9204393447.

The spelling of 5194979197 in words is "five billion, one hundred ninety-four million, nine hundred seventy-nine thousand, one hundred ninety-seven".