609436442089 has 2 divisors, whose sum is σ = 609436442090. Its totient is φ = 609436442088.

The previous prime is 609436442057. The next prime is 609436442093. The reversal of 609436442089 is 980244634906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384871344400 + 224565097689 = 620380^2 + 473883^2 .

It is a cyclic number.

It is not a de Polignac number, because 609436442089 - 2⁵ = 609436442057 is a prime.

It is not a weakly prime, because it can be changed into another prime (609436442689) 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, 304718221044 + 304718221045.

It is an arithmetic number, because the mean of its divisors is an integer number (304718221045).

Almost surely, 2^609436442089 is an apocalyptic number.

It is an amenable number.

609436442089 is a deficient number, since it is larger than the sum of its proper divisors (1).

609436442089 is an equidigital number, since it uses as much as digits as its factorization.

609436442089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 609436442089 in words is "six hundred nine billion, four hundred thirty-six million, four hundred forty-two thousand, eighty-nine".