13786986723 has 16 divisors (see below), whose sum is σ = 19467296640. Its totient is φ = 8649184896.

The previous prime is 13786986649. The next prime is 13786986749. The reversal of 13786986723 is 32768968731.

It is a Cunningham number, because it is equal to 117418²-1.

It is not a de Polignac number, because 13786986723 - 2³³ = 5197052131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13786986023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332688 + ... + 371826.

It is an arithmetic number, because the mean of its divisors is an integer number (1216706040).

Almost surely, 2^13786986723 is an apocalyptic number.

13786986723 is a deficient number, since it is larger than the sum of its proper divisors (5680309917).

13786986723 is a wasteful number, since it uses less digits than its factorization.

13786986723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46066.

The product of its digits is 18289152, while the sum is 60.

The spelling of 13786986723 in words is "thirteen billion, seven hundred eighty-six million, nine hundred eighty-six thousand, seven hundred twenty-three".