1698870474089 has 2 divisors, whose sum is σ = 1698870474090. Its totient is φ = 1698870474088.

The previous prime is 1698870474023. The next prime is 1698870474097. The reversal of 1698870474089 is 9804740788961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1684305604864 + 14564869225 = 1297808^2 + 120685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1698870474089 - 2¹⁶ = 1698870408553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1698870474989) 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, 849435237044 + 849435237045.

It is an arithmetic number, because the mean of its divisors is an integer number (849435237045).

Almost surely, 2^{1698870474089} is an apocalyptic number.

It is an amenable number.

1698870474089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1698870474089 is an equidigital number, since it uses as much as digits as its factorization.

1698870474089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 195084288, while the sum is 71.

The spelling of 1698870474089 in words is "one trillion, six hundred ninety-eight billion, eight hundred seventy million, four hundred seventy-four thousand, eighty-nine".