1444288879991 has 2 divisors, whose sum is σ = 1444288879992. Its totient is φ = 1444288879990.

The previous prime is 1444288879981. The next prime is 1444288880003. The reversal of 1444288879991 is 1999788824441.

It is a weak prime.

It is an emirp because it is prime and its reverse (1999788824441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444288879991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444288879981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722144439995 + 722144439996.

It is an arithmetic number, because the mean of its divisors is an integer number (722144439996).

Almost surely, 2^{1444288879991} is an apocalyptic number.

1444288879991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444288879991 is an equidigital number, since it uses as much as digits as its factorization.

1444288879991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 334430208, while the sum is 74.

The spelling of 1444288879991 in words is "one trillion, four hundred forty-four billion, two hundred eighty-eight million, eight hundred seventy-nine thousand, nine hundred ninety-one".