13489687706879 has 4 divisors (see below), whose sum is σ = 13489752877176. Its totient is φ = 13489622536584.

The previous prime is 13489687706813. The next prime is 13489687706909. The reversal of 13489687706879 is 97860778698431.

13489687706879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13489687706879 - 2²⁴ = 13489670929663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13489687706797 and 13489687706806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13489687703879) 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, 32273669 + ... + 32688974.

It is an arithmetic number, because the mean of its divisors is an integer number (3372438219294).

Almost surely, 2^{13489687706879} is an apocalyptic number.

13489687706879 is a deficient number, since it is larger than the sum of its proper divisors (65170297).

13489687706879 is an equidigital number, since it uses as much as digits as its factorization.

13489687706879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65170296.

The product of its (nonzero) digits is 6145155072, while the sum is 83.

The spelling of 13489687706879 in words is "thirteen trillion, four hundred eighty-nine billion, six hundred eighty-seven million, seven hundred six thousand, eight hundred seventy-nine".