344423221273 has 2 divisors, whose sum is σ = 344423221274. Its totient is φ = 344423221272.

The previous prime is 344423221267. The next prime is 344423221291. The reversal of 344423221273 is 372122324443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314774858304 + 29648362969 = 561048^2 + 172187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344423221273 is a prime.

It is not a weakly prime, because it can be changed into another prime (344423221213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172211610636 + 172211610637.

It is an arithmetic number, because the mean of its divisors is an integer number (172211610637).

Almost surely, 2^344423221273 is an apocalyptic number.

It is an amenable number.

344423221273 is a deficient number, since it is larger than the sum of its proper divisors (1).

344423221273 is an equidigital number, since it uses as much as digits as its factorization.

344423221273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 37.

The spelling of 344423221273 in words is "three hundred forty-four billion, four hundred twenty-three million, two hundred twenty-one thousand, two hundred seventy-three".