1444285857143 has 4 divisors (see below), whose sum is σ = 1459175402160. Its totient is φ = 1429396312128.

The previous prime is 1444285857089. The next prime is 1444285857173. The reversal of 1444285857143 is 3417585824441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1444285857143 - 2¹⁶ = 1444285791607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444285857173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7444772363 + ... + 7444772556.

It is an arithmetic number, because the mean of its divisors is an integer number (364793850540).

Almost surely, 2^{1444285857143} is an apocalyptic number.

1444285857143 is a deficient number, since it is larger than the sum of its proper divisors (14889545017).

1444285857143 is an equidigital number, since it uses as much as digits as its factorization.

1444285857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14889545016.

The product of its digits is 17203200, while the sum is 56.

The spelling of 1444285857143 in words is "one trillion, four hundred forty-four billion, two hundred eighty-five million, eight hundred fifty-seven thousand, one hundred forty-three".