1445456511439 has 2 divisors, whose sum is σ = 1445456511440. Its totient is φ = 1445456511438.

The previous prime is 1445456511397. The next prime is 1445456511553. The reversal of 1445456511439 is 9341156545441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445456511439 - 2¹⁷ = 1445456380367 is a prime.

It is a super-2 number, since 2×1445456511439² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445426511439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722728255719 + 722728255720.

It is an arithmetic number, because the mean of its divisors is an integer number (722728255720).

Almost surely, 2^{1445456511439} is an apocalyptic number.

1445456511439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445456511439 is an equidigital number, since it uses as much as digits as its factorization.

1445456511439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 52.

The spelling of 1445456511439 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, four hundred thirty-nine".