1444287142873 has 4 divisors (see below), whose sum is σ = 1444296652240. Its totient is φ = 1444277633508.

The previous prime is 1444287142871. The next prime is 1444287142891. The reversal of 1444287142873 is 3782417824441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1444287142873 - 2¹ = 1444287142871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444287142871) 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, 4523103 + ... + 4831876.

It is an arithmetic number, because the mean of its divisors is an integer number (361074163060).

Almost surely, 2^{1444287142873} is an apocalyptic number.

It is an amenable number.

1444287142873 is a deficient number, since it is larger than the sum of its proper divisors (9509367).

1444287142873 is an equidigital number, since it uses as much as digits as its factorization.

1444287142873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509366.

The product of its digits is 9633792, while the sum is 55.

The spelling of 1444287142873 in words is "one trillion, four hundred forty-four billion, two hundred eighty-seven million, one hundred forty-two thousand, eight hundred seventy-three".