344247086321 has 2 divisors, whose sum is σ = 344247086322. Its totient is φ = 344247086320.

The previous prime is 344247086317. The next prime is 344247086327. The reversal of 344247086321 is 123680742443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339086100721 + 5160985600 = 582311^2 + 71840^2 .

It is a cyclic number.

It is not a de Polignac number, because 344247086321 - 2² = 344247086317 is a prime.

It is not a weakly prime, because it can be changed into another prime (344247086327) 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, 172123543160 + 172123543161.

It is an arithmetic number, because the mean of its divisors is an integer number (172123543161).

Almost surely, 2^344247086321 is an apocalyptic number.

It is an amenable number.

344247086321 is a deficient number, since it is larger than the sum of its proper divisors (1).

344247086321 is an equidigital number, since it uses as much as digits as its factorization.

344247086321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 344247086321 in words is "three hundred forty-four billion, two hundred forty-seven million, eighty-six thousand, three hundred twenty-one".