1344420344437 has 2 divisors, whose sum is σ = 1344420344438. Its totient is φ = 1344420344436.

The previous prime is 1344420344383. The next prime is 1344420344459. The reversal of 1344420344437 is 7344430244431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1262984878276 + 81435466161 = 1123826^2 + 285369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344420344437 - 2¹¹ = 1344420342389 is a prime.

It is a super-2 number, since 2×1344420344437² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1344420344393 and 1344420344402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344420344537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672210172218 + 672210172219.

It is an arithmetic number, because the mean of its divisors is an integer number (672210172219).

Almost surely, 2^{1344420344437} is an apocalyptic number.

It is an amenable number.

1344420344437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344420344437 is an equidigital number, since it uses as much as digits as its factorization.

1344420344437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 43.

Adding to 1344420344437 its reverse (7344430244431), we get a palindrome (8688850588868).

The spelling of 1344420344437 in words is "one trillion, three hundred forty-four billion, four hundred twenty million, three hundred forty-four thousand, four hundred thirty-seven".