13680337439 has 4 divisors (see below), whose sum is σ = 13873018320. Its totient is φ = 13487656560.

The previous prime is 13680337403. The next prime is 13680337457. The reversal of 13680337439 is 93473308631.

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 13680337439 - 2²⁸ = 13411901983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13680337393 and 13680337402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680337499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96340334 + ... + 96340475.

It is an arithmetic number, because the mean of its divisors is an integer number (3468254580).

Almost surely, 2^13680337439 is an apocalyptic number.

13680337439 is a deficient number, since it is larger than the sum of its proper divisors (192680881).

13680337439 is an equidigital number, since it uses as much as digits as its factorization.

13680337439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192680880.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 13680337439 in words is "thirteen billion, six hundred eighty million, three hundred thirty-seven thousand, four hundred thirty-nine".