13989389745285 has 12 divisors (see below), whose sum is σ = 24248275558572. Its totient is φ = 7461007864128.

The previous prime is 13989389745271. The next prime is 13989389745293. The reversal of 13989389745285 is 58254798398931.

13989389745285 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 9 + 3 + 89 + 7 + 4 + 528 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8283793472964 + 5705596272321 = 2878158^2 + 2388639^2 .

It is not a de Polignac number, because 13989389745285 - 2¹⁴ = 13989389728901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155437663792 + ... + 155437663881.

It is an arithmetic number, because the mean of its divisors is an integer number (2020689629881).

Almost surely, 2^{13989389745285} is an apocalyptic number.

13989389745285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13989389745285 is a deficient number, since it is larger than the sum of its proper divisors (10258885813287).

13989389745285 is a wasteful number, since it uses less digits than its factorization.

13989389745285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310875327684 (or 310875327681 counting only the distinct ones).

The product of its digits is 4702924800, while the sum is 81.

The spelling of 13989389745285 in words is "thirteen trillion, nine hundred eighty-nine billion, three hundred eighty-nine million, seven hundred forty-five thousand, two hundred eighty-five".