1344445788913 has 2 divisors, whose sum is σ = 1344445788914. Its totient is φ = 1344445788912.

The previous prime is 1344445788887. The next prime is 1344445788923. The reversal of 1344445788913 is 3198875444431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1338482397184 + 5963391729 = 1156928^2 + 77223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344445788913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344445788923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672222894456 + 672222894457.

It is an arithmetic number, because the mean of its divisors is an integer number (672222894457).

Almost surely, 2^{1344445788913} is an apocalyptic number.

It is an amenable number.

1344445788913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344445788913 is an equidigital number, since it uses as much as digits as its factorization.

1344445788913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46448640, while the sum is 61.

The spelling of 1344445788913 in words is "one trillion, three hundred forty-four billion, four hundred forty-five million, seven hundred eighty-eight thousand, nine hundred thirteen".