13806711771 has 4 divisors (see below), whose sum is σ = 18408949032. Its totient is φ = 9204474512.

The previous prime is 13806711767. The next prime is 13806711773. The reversal of 13806711771 is 17711760831.

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 13806711771 - 2² = 13806711767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13806711773) 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, 2301118626 + ... + 2301118631.

It is an arithmetic number, because the mean of its divisors is an integer number (4602237258).

Almost surely, 2^13806711771 is an apocalyptic number.

13806711771 is a deficient number, since it is larger than the sum of its proper divisors (4602237261).

13806711771 is an equidigital number, since it uses as much as digits as its factorization.

13806711771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602237260.

The product of its (nonzero) digits is 49392, while the sum is 42.

The spelling of 13806711771 in words is "thirteen billion, eight hundred six million, seven hundred eleven thousand, seven hundred seventy-one".