14442872891 has 4 divisors (see below), whose sum is σ = 14443217112. Its totient is φ = 14442528672.

The previous prime is 14442872863. The next prime is 14442872989. The reversal of 14442872891 is 19827824441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19827824441 = 139 ⋅142646219.

It is a cyclic number.

It is not a de Polignac number, because 14442872891 - 2²² = 14438678587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14442872861) 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, 98750 + ... + 196563.

It is an arithmetic number, because the mean of its divisors is an integer number (3610804278).

Almost surely, 2^14442872891 is an apocalyptic number.

14442872891 is a deficient number, since it is larger than the sum of its proper divisors (344221).

14442872891 is an equidigital number, since it uses as much as digits as its factorization.

14442872891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344220.

The product of its digits is 1032192, while the sum is 50.

The spelling of 14442872891 in words is "fourteen billion, four hundred forty-two million, eight hundred seventy-two thousand, eight hundred ninety-one".