180234344449 has 2 divisors, whose sum is σ = 180234344450. Its totient is φ = 180234344448.

The previous prime is 180234344393. The next prime is 180234344497. The reversal of 180234344449 is 944443432081.

180234344449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143646306049 + 36588038400 = 379007^2 + 191280^2 .

It is a cyclic number.

It is not a de Polignac number, because 180234344449 - 2⁹ = 180234343937 is a prime.

It is a super-2 number, since 2×180234344449² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180234344399 and 180234344408.

It is not a weakly prime, because it can be changed into another prime (180234344149) 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, 90117172224 + 90117172225.

It is an arithmetic number, because the mean of its divisors is an integer number (90117172225).

Almost surely, 2^180234344449 is an apocalyptic number.

It is an amenable number.

180234344449 is a deficient number, since it is larger than the sum of its proper divisors (1).

180234344449 is an equidigital number, since it uses as much as digits as its factorization.

180234344449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 180234344449 in words is "one hundred eighty billion, two hundred thirty-four million, three hundred forty-four thousand, four hundred forty-nine".