13711805605571 has 4 divisors (see below), whose sum is σ = 13711853586144. Its totient is φ = 13711757625000.

The previous prime is 13711805605529. The next prime is 13711805605621. The reversal of 13711805605571 is 17550650811731.

13711805605571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13711805605571 is a prime.

It is a super-2 number, since 2×13711805605571² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13711805605471) 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, 23559035 + ... + 24134036.

It is an arithmetic number, because the mean of its divisors is an integer number (3427963396536).

Almost surely, 2^{13711805605571} is an apocalyptic number.

13711805605571 is a deficient number, since it is larger than the sum of its proper divisors (47980573).

13711805605571 is an equidigital number, since it uses as much as digits as its factorization.

13711805605571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47980572.

The product of its (nonzero) digits is 882000, while the sum is 50.

The spelling of 13711805605571 in words is "thirteen trillion, seven hundred eleven billion, eight hundred five million, six hundred five thousand, five hundred seventy-one".