605844368149 has 2 divisors, whose sum is σ = 605844368150. Its totient is φ = 605844368148.

The previous prime is 605844368141. The next prime is 605844368257. The reversal of 605844368149 is 941863448506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604988396100 + 855972049 = 777810^2 + 29257^2 .

It is a cyclic number.

It is not a de Polignac number, because 605844368149 - 2³ = 605844368141 is a prime.

It is a super-2 number, since 2×605844368149² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 605844368093 and 605844368102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605844368141) 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, 302922184074 + 302922184075.

It is an arithmetic number, because the mean of its divisors is an integer number (302922184075).

Almost surely, 2^605844368149 is an apocalyptic number.

It is an amenable number.

605844368149 is a deficient number, since it is larger than the sum of its proper divisors (1).

605844368149 is an equidigital number, since it uses as much as digits as its factorization.

605844368149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 605844368149 in words is "six hundred five billion, eight hundred forty-four million, three hundred sixty-eight thousand, one hundred forty-nine".