1344764475161 has 2 divisors, whose sum is σ = 1344764475162. Its totient is φ = 1344764475160.

The previous prime is 1344764475097. The next prime is 1344764475239. The reversal of 1344764475161 is 1615744674431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 912491099536 + 432273375625 = 955244^2 + 657475^2 .

It is an emirp because it is prime and its reverse (1615744674431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1344764475161 - 2⁶ = 1344764475097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1344764475961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672382237580 + 672382237581.

It is an arithmetic number, because the mean of its divisors is an integer number (672382237581).

Almost surely, 2^{1344764475161} is an apocalyptic number.

It is an amenable number.

1344764475161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344764475161 is an equidigital number, since it uses as much as digits as its factorization.

1344764475161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 53.

The spelling of 1344764475161 in words is "one trillion, three hundred forty-four billion, seven hundred sixty-four million, four hundred seventy-five thousand, one hundred sixty-one".