1444745921579 has 2 divisors, whose sum is σ = 1444745921580. Its totient is φ = 1444745921578.

The previous prime is 1444745921539. The next prime is 1444745921581. The reversal of 1444745921579 is 9751295474441.

It is a strong prime.

It is an emirp because it is prime and its reverse (9751295474441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444745921579 is a prime.

Together with 1444745921581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1444745921539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722372960789 + 722372960790.

It is an arithmetic number, because the mean of its divisors is an integer number (722372960790).

Almost surely, 2^{1444745921579} is an apocalyptic number.

1444745921579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444745921579 is an equidigital number, since it uses as much as digits as its factorization.

1444745921579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 62.

The spelling of 1444745921579 in words is "one trillion, four hundred forty-four billion, seven hundred forty-five million, nine hundred twenty-one thousand, five hundred seventy-nine".