13423685687 has 8 divisors (see below), whose sum is σ = 14131263360. Its totient is φ = 12716214840.

The previous prime is 13423685683. The next prime is 13423685713. The reversal of 13423685687 is 78658632431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13423685687 - 2² = 13423685683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423685683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445262 + ... + 474452.

It is an arithmetic number, because the mean of its divisors is an integer number (1766407920).

Almost surely, 2^13423685687 is an apocalyptic number.

13423685687 is a deficient number, since it is larger than the sum of its proper divisors (707577673).

13423685687 is a wasteful number, since it uses less digits than its factorization.

13423685687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53413.

The product of its digits is 5806080, while the sum is 53.

The spelling of 13423685687 in words is "thirteen billion, four hundred twenty-three million, six hundred eighty-five thousand, six hundred eighty-seven".