14438989217689 has 27 divisors (see below), whose sum is σ = 15604923906549. Its totient is φ = 13358052451800.

The previous prime is 14438989217663. The next prime is 14438989217701. The reversal of 14438989217689 is 98671298983441.

The square root of 14438989217689 is 3799867.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 14438989217689 - 2¹⁹ = 14438988693401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14438989247689) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3104489014 + ... + 3104493664.

It is an arithmetic number, because the mean of its divisors is an integer number (577960144687).

Almost surely, 2^{14438989217689} is an apocalyptic number.

14438989217689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14438989217689 is the 3799867-th square number.

14438989217689 is the 1899934-th centered octagonal number.

It is an amenable number.

14438989217689 is a deficient number, since it is larger than the sum of its proper divisors (1165934688860).

14438989217689 is an frugal number, since it uses more digits than its factorization.

14438989217689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426 (or 4713 counting only the distinct ones).

The product of its digits is 1504935936, while the sum is 79.

The spelling of 14438989217689 in words is "fourteen trillion, four hundred thirty-eight billion, nine hundred eighty-nine million, two hundred seventeen thousand, six hundred eighty-nine".