13686593387 has 4 divisors (see below), whose sum is σ = 13758251136. Its totient is φ = 13614935640.

The previous prime is 13686593353. The next prime is 13686593419. The reversal of 13686593387 is 78339568631.

It is a happy number.

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 13686593387 - 2⁸ = 13686593131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13686593287) 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, 35828588 + ... + 35828969.

It is an arithmetic number, because the mean of its divisors is an integer number (3439562784).

Almost surely, 2^13686593387 is an apocalyptic number.

13686593387 is a deficient number, since it is larger than the sum of its proper divisors (71657749).

13686593387 is an equidigital number, since it uses as much as digits as its factorization.

13686593387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71657748.

The product of its digits is 19595520, while the sum is 59.

The spelling of 13686593387 in words is "thirteen billion, six hundred eighty-six million, five hundred ninety-three thousand, three hundred eighty-seven".