5197451689 has 2 divisors, whose sum is σ = 5197451690. Its totient is φ = 5197451688.

The previous prime is 5197451671. The next prime is 5197451771. The reversal of 5197451689 is 9861547915.

It is a happy number.

5197451689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3634040089 + 1563411600 = 60283^2 + 39540^2 .

It is a cyclic number.

It is not a de Polignac number, because 5197451689 - 2⁹ = 5197451177 is a prime.

It is not a weakly prime, because it can be changed into another prime (5197451669) 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 as a sum of consecutive naturals, namely, 2598725844 + 2598725845.

It is an arithmetic number, because the mean of its divisors is an integer number (2598725845).

Almost surely, 2^5197451689 is an apocalyptic number.

It is an amenable number.

5197451689 is a deficient number, since it is larger than the sum of its proper divisors (1).

5197451689 is an equidigital number, since it uses as much as digits as its factorization.

5197451689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 55.

The square root of 5197451689 is about 72093.3539863419. The cubic root of 5197451689 is about 1732.1951584597.

The spelling of 5197451689 in words is "five billion, one hundred ninety-seven million, four hundred fifty-one thousand, six hundred eighty-nine".