17719650089 has 2 divisors, whose sum is σ = 17719650090. Its totient is φ = 17719650088.

The previous prime is 17719650071. The next prime is 17719650101. The reversal of 17719650089 is 98005691771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12048355225 + 5671294864 = 109765^2 + 75308^2 .

It is a cyclic number.

It is not a de Polignac number, because 17719650089 - 2³² = 13424682793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17719650089.

It is not a weakly prime, because it can be changed into another prime (17719650029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8859825044 + 8859825045.

It is an arithmetic number, because the mean of its divisors is an integer number (8859825045).

Almost surely, 2^17719650089 is an apocalyptic number.

It is an amenable number.

17719650089 is a deficient number, since it is larger than the sum of its proper divisors (1).

17719650089 is an equidigital number, since it uses as much as digits as its factorization.

17719650089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 53.

The spelling of 17719650089 in words is "seventeen billion, seven hundred nineteen million, six hundred fifty thousand, eighty-nine".