305442054346369 has 2 divisors, whose sum is σ = 305442054346370. Its totient is φ = 305442054346368.

The previous prime is 305442054346291. The next prime is 305442054346399. The reversal of 305442054346369 is 963643450244503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303661537736769 + 1780516609600 = 17425887^2 + 1334360^2 .

It is a cyclic number.

It is not a de Polignac number, because 305442054346369 - 2¹⁵ = 305442054313601 is a prime.

It is a super-2 number, since 2×305442054346369² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (305442054346399) 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, 152721027173184 + 152721027173185.

It is an arithmetic number, because the mean of its divisors is an integer number (152721027173185).

Almost surely, 2^{305442054346369} is an apocalyptic number.

It is an amenable number.

305442054346369 is a deficient number, since it is larger than the sum of its proper divisors (1).

305442054346369 is an equidigital number, since it uses as much as digits as its factorization.

305442054346369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111974400, while the sum is 58.

The spelling of 305442054346369 in words is "three hundred five trillion, four hundred forty-two billion, fifty-four million, three hundred forty-six thousand, three hundred sixty-nine".