5193198391 has 2 divisors, whose sum is σ = 5193198392. Its totient is φ = 5193198390.

The previous prime is 5193198379. The next prime is 5193198421. The reversal of 5193198391 is 1938913915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5193198391 - 2²⁵ = 5159643959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5193198331) 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, 2596599195 + 2596599196.

It is an arithmetic number, because the mean of its divisors is an integer number (2596599196).

Almost surely, 2^5193198391 is an apocalyptic number.

5193198391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5193198391 is an equidigital number, since it uses as much as digits as its factorization.

5193198391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 49.

The square root of 5193198391 is about 72063.8494045385. The cubic root of 5193198391 is about 1731.7225196049.

The spelling of 5193198391 in words is "five billion, one hundred ninety-three million, one hundred ninety-eight thousand, three hundred ninety-one".