19098099000109 has 2 divisors, whose sum is σ = 19098099000110. Its totient is φ = 19098099000108.

The previous prime is 19098099000091. The next prime is 19098099000121. The reversal of 19098099000109 is 90100099089091.

Together with previous prime (19098099000091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14032493524009 + 5065605476100 = 3745997^2 + 2250690^2 .

It is a cyclic number.

It is not a de Polignac number, because 19098099000109 - 2⁷ = 19098098999981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19098099000109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19098099007109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9549049500054 + 9549049500055.

It is an arithmetic number, because the mean of its divisors is an integer number (9549049500055).

Almost surely, 2^{19098099000109} is an apocalyptic number.

It is an amenable number.

19098099000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

19098099000109 is an equidigital number, since it uses as much as digits as its factorization.

19098099000109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 55.

The spelling of 19098099000109 in words is "nineteen trillion, ninety-eight billion, ninety-nine million, one hundred nine", and thus it is an aban number.