169898989607 has 2 divisors, whose sum is σ = 169898989608. Its totient is φ = 169898989606.

The previous prime is 169898989597. The next prime is 169898989609. The reversal of 169898989607 is 706989898961.

It is a happy number.

169898989607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169898989607 - 2¹⁰ = 169898988583 is a prime.

Together with 169898989609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169898989609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84949494803 + 84949494804.

It is an arithmetic number, because the mean of its divisors is an integer number (84949494804).

Almost surely, 2^169898989607 is an apocalyptic number.

169898989607 is a deficient number, since it is larger than the sum of its proper divisors (1).

169898989607 is an equidigital number, since it uses as much as digits as its factorization.

169898989607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846526464, while the sum is 80.

The spelling of 169898989607 in words is "one hundred sixty-nine billion, eight hundred ninety-eight million, nine hundred eighty-nine thousand, six hundred seven".