13639816085 has 8 divisors (see below), whose sum is σ = 18706033536. Its totient is φ = 9353016720.

The previous prime is 13639816079. The next prime is 13639816171. The reversal of 13639816085 is 58061893631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13639816085 - 2²⁶ = 13572707221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194854481 + ... + 194854550.

It is an arithmetic number, because the mean of its divisors is an integer number (2338254192).

Almost surely, 2^13639816085 is an apocalyptic number.

It is an amenable number.

13639816085 is a deficient number, since it is larger than the sum of its proper divisors (5066217451).

13639816085 is an equidigital number, since it uses as much as digits as its factorization.

13639816085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389709043.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 13639816085 in words is "thirteen billion, six hundred thirty-nine million, eight hundred sixteen thousand, eighty-five".