1445744285873 has 16 divisors (see below), whose sum is σ = 1532723063760. Its totient is φ = 1361269324800.

The previous prime is 1445744285803. The next prime is 1445744285911. The reversal of 1445744285873 is 3785824475441.

It can be written as a sum of positive squares in 8 ways, for example, as 577983103504 + 867761182369 = 760252^2 + 931537^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445744285873 - 2¹⁰ = 1445744284849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1445744285803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2570483 + ... + 3082023.

It is an arithmetic number, because the mean of its divisors is an integer number (95795191485).

Almost surely, 2^{1445744285873} is an apocalyptic number.

It is an amenable number.

1445744285873 is a deficient number, since it is larger than the sum of its proper divisors (86978777887).

1445744285873 is a wasteful number, since it uses less digits than its factorization.

1445744285873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513988.

The product of its digits is 120422400, while the sum is 62.

The spelling of 1445744285873 in words is "one trillion, four hundred forty-five billion, seven hundred forty-four million, two hundred eighty-five thousand, eight hundred seventy-three".