14388581393 has 4 divisors (see below), whose sum is σ = 14410616628. Its totient is φ = 14366546160.

The previous prime is 14388581387. The next prime is 14388581401. The reversal of 14388581393 is 39318588341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4339120384 + 10049461009 = 65872^2 + 100247^2 .

It is a cyclic number.

It is not a de Polignac number, because 14388581393 - 2⁴ = 14388581377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14388581093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11016638 + ... + 11017943.

It is an arithmetic number, because the mean of its divisors is an integer number (3602654157).

Almost surely, 2^14388581393 is an apocalyptic number.

It is an amenable number.

14388581393 is a deficient number, since it is larger than the sum of its proper divisors (22035235).

14388581393 is an equidigital number, since it uses as much as digits as its factorization.

14388581393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22035234.

The product of its digits is 2488320, while the sum is 53.

The spelling of 14388581393 in words is "fourteen billion, three hundred eighty-eight million, five hundred eighty-one thousand, three hundred ninety-three".