344418389449 has 2 divisors, whose sum is σ = 344418389450. Its totient is φ = 344418389448.

The previous prime is 344418389387. The next prime is 344418389479. The reversal of 344418389449 is 944983814443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312293204224 + 32125185225 = 558832^2 + 179235^2 .

It is a cyclic number.

It is not a de Polignac number, because 344418389449 - 2²⁹ = 343881518537 is a prime.

It is not a weakly prime, because it can be changed into another prime (344418389479) 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, 172209194724 + 172209194725.

It is an arithmetic number, because the mean of its divisors is an integer number (172209194725).

Almost surely, 2^344418389449 is an apocalyptic number.

It is an amenable number.

344418389449 is a deficient number, since it is larger than the sum of its proper divisors (1).

344418389449 is an equidigital number, since it uses as much as digits as its factorization.

344418389449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47775744, while the sum is 61.

The spelling of 344418389449 in words is "three hundred forty-four billion, four hundred eighteen million, three hundred eighty-nine thousand, four hundred forty-nine".