243589484729 has 2 divisors, whose sum is σ = 243589484730. Its totient is φ = 243589484728.

The previous prime is 243589484711. The next prime is 243589484737. The reversal of 243589484729 is 927484985342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224922547600 + 18666937129 = 474260^2 + 136627^2 .

It is a cyclic number.

It is not a de Polignac number, because 243589484729 - 2³² = 239294517433 is a prime.

It is not a weakly prime, because it can be changed into another prime (243589484329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121794742364 + 121794742365.

It is an arithmetic number, because the mean of its divisors is an integer number (121794742365).

Almost surely, 2^243589484729 is an apocalyptic number.

It is an amenable number.

243589484729 is a deficient number, since it is larger than the sum of its proper divisors (1).

243589484729 is an equidigital number, since it uses as much as digits as its factorization.

243589484729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139345920, while the sum is 65.

The spelling of 243589484729 in words is "two hundred forty-three billion, five hundred eighty-nine million, four hundred eighty-four thousand, seven hundred twenty-nine".