344418389489 has 2 divisors, whose sum is σ = 344418389490. Its totient is φ = 344418389488.

The previous prime is 344418389479. The next prime is 344418389503. The reversal of 344418389489 is 984983814443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302560503025 + 41857886464 = 550055^2 + 204592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344418389489 is a prime.

It is a super-2 number, since 2×344418389489² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (344418389449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172209194744 + 172209194745.

It is an arithmetic number, because the mean of its divisors is an integer number (172209194745).

Almost surely, 2^344418389489 is an apocalyptic number.

It is an amenable number.

344418389489 is a deficient number, since it is larger than the sum of its proper divisors (1).

344418389489 is an equidigital number, since it uses as much as digits as its factorization.

344418389489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95551488, while the sum is 65.

The spelling of 344418389489 in words is "three hundred forty-four billion, four hundred eighteen million, three hundred eighty-nine thousand, four hundred eighty-nine".