13205143682489 has 4 divisors (see below), whose sum is σ = 14405611290000. Its totient is φ = 12004676074980.

The previous prime is 13205143682461. The next prime is 13205143682543. The reversal of 13205143682489 is 98428634150231.

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 a de Polignac number, because none of the positive numbers 2^k-13205143682489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13205143682189) 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, 600233803739 + ... + 600233803760.

It is an arithmetic number, because the mean of its divisors is an integer number (3601402822500).

Almost surely, 2^{13205143682489} is an apocalyptic number.

It is an amenable number.

13205143682489 is a deficient number, since it is larger than the sum of its proper divisors (1200467607511).

13205143682489 is a wasteful number, since it uses less digits than its factorization.

13205143682489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200467607510.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 13205143682489 in words is "thirteen trillion, two hundred five billion, one hundred forty-three million, six hundred eighty-two thousand, four hundred eighty-nine".