13786986724 has 27 divisors (see below), whose sum is σ = 28069712643. Its totient is φ = 5908004088.

The previous prime is 13786986649. The next prime is 13786986749. The reversal of 13786986724 is 42768968731.

It is a happy number.

The square root of 13786986724 is 117418.

It is a perfect power (a square), and thus also a powerful number.

13786986724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1639659 + ... + 1648045.

Almost surely, 2^13786986724 is an apocalyptic number.

13786986724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13786986724 is the 117418-th square number.

It is an amenable number.

13786986724 is an abundant number, since it is smaller than the sum of its proper divisors (14282725919).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13786986724 is an frugal number, since it uses more digits than its factorization.

13786986724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16792 (or 8396 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 61.

The spelling of 13786986724 in words is "thirteen billion, seven hundred eighty-six million, nine hundred eighty-six thousand, seven hundred twenty-four".