1344991156849 has 2 divisors, whose sum is σ = 1344991156850. Its totient is φ = 1344991156848.

The previous prime is 1344991156819. The next prime is 1344991156879. The reversal of 1344991156849 is 9486511994431.

It is a balanced prime because it is at equal distance from previous prime (1344991156819) and next prime (1344991156879).

It can be written as a sum of positive squares in only one way, i.e., 1135062244449 + 209928912400 = 1065393^2 + 458180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344991156849 is a prime.

It is a super-2 number, since 2×1344991156849² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1344991156819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672495578424 + 672495578425.

It is an arithmetic number, because the mean of its divisors is an integer number (672495578425).

Almost surely, 2^{1344991156849} is an apocalyptic number.

It is an amenable number.

1344991156849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344991156849 is an equidigital number, since it uses as much as digits as its factorization.

1344991156849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33592320, while the sum is 64.

The spelling of 1344991156849 in words is "one trillion, three hundred forty-four billion, nine hundred ninety-one million, one hundred fifty-six thousand, eight hundred forty-nine".