1198830089729 has 2 divisors, whose sum is σ = 1198830089730. Its totient is φ = 1198830089728.

The previous prime is 1198830089707. The next prime is 1198830089771. The reversal of 1198830089729 is 9279800388911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 631670479729 + 567159610000 = 794777^2 + 753100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198830089729 - 2²⁰ = 1198829041153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1198830019729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599415044864 + 599415044865.

It is an arithmetic number, because the mean of its divisors is an integer number (599415044865).

Almost surely, 2^{1198830089729} is an apocalyptic number.

It is an amenable number.

1198830089729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198830089729 is an equidigital number, since it uses as much as digits as its factorization.

1198830089729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 65.

The spelling of 1198830089729 in words is "one trillion, one hundred ninety-eight billion, eight hundred thirty million, eighty-nine thousand, seven hundred twenty-nine".