344666422549 has 2 divisors, whose sum is σ = 344666422550. Its totient is φ = 344666422548.

The previous prime is 344666422547. The next prime is 344666422601. The reversal of 344666422549 is 945224666443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278486287524 + 66180135025 = 527718^2 + 257255^2 .

It is a cyclic number.

It is not a de Polignac number, because 344666422549 - 2¹ = 344666422547 is a prime.

Together with 344666422547, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 344666422549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344666422543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172333211274 + 172333211275.

It is an arithmetic number, because the mean of its divisors is an integer number (172333211275).

Almost surely, 2^344666422549 is an apocalyptic number.

It is an amenable number.

344666422549 is a deficient number, since it is larger than the sum of its proper divisors (1).

344666422549 is an equidigital number, since it uses as much as digits as its factorization.

344666422549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29859840, while the sum is 55.

The spelling of 344666422549 in words is "three hundred forty-four billion, six hundred sixty-six million, four hundred twenty-two thousand, five hundred forty-nine".