115698287689 has 2 divisors, whose sum is σ = 115698287690. Its totient is φ = 115698287688.

The previous prime is 115698287599. The next prime is 115698287707. The reversal of 115698287689 is 986782896511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110401359289 + 5296928400 = 332267^2 + 72780^2 .

It is a cyclic number.

It is not a de Polignac number, because 115698287689 - 2¹⁷ = 115698156617 is a prime.

It is not a weakly prime, because it can be changed into another prime (115698287189) 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, 57849143844 + 57849143845.

It is an arithmetic number, because the mean of its divisors is an integer number (57849143845).

Almost surely, 2^115698287689 is an apocalyptic number.

It is an amenable number.

115698287689 is a deficient number, since it is larger than the sum of its proper divisors (1).

115698287689 is an equidigital number, since it uses as much as digits as its factorization.

115698287689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104509440, while the sum is 70.

The spelling of 115698287689 in words is "one hundred fifteen billion, six hundred ninety-eight million, two hundred eighty-seven thousand, six hundred eighty-nine".