1673889041689 has 2 divisors, whose sum is σ = 1673889041690. Its totient is φ = 1673889041688.

The previous prime is 1673889041677. The next prime is 1673889041717. The reversal of 1673889041689 is 9861409883761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1099729742400 + 574159299289 = 1048680^2 + 757733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673889041689 - 2¹³ = 1673889033497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1673889041609) 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, 836944520844 + 836944520845.

It is an arithmetic number, because the mean of its divisors is an integer number (836944520845).

Almost surely, 2^{1673889041689} is an apocalyptic number.

It is an amenable number.

1673889041689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673889041689 is an equidigital number, since it uses as much as digits as its factorization.

1673889041689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 1673889041689 in words is "one trillion, six hundred seventy-three billion, eight hundred eighty-nine million, forty-one thousand, six hundred eighty-nine".