13771571317 has 24 divisors (see below), whose sum is σ = 16892625600. Its totient is φ = 10993269888.

The previous prime is 13771571311. The next prime is 13771571339. The reversal of 13771571317 is 71317517731.

It is not a de Polignac number, because 13771571317 - 2⁷ = 13771571189 is a prime.

It is a super-2 number, since 2×13771571317² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13771571311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102909 + ... + 195277.

It is an arithmetic number, because the mean of its divisors is an integer number (703859400).

Almost surely, 2^13771571317 is an apocalyptic number.

It is an amenable number.

13771571317 is a deficient number, since it is larger than the sum of its proper divisors (3121054283).

13771571317 is an equidigital number, since it uses as much as digits as its factorization.

13771571317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92473 (or 92454 counting only the distinct ones).

The product of its digits is 108045, while the sum is 43.

The spelling of 13771571317 in words is "thirteen billion, seven hundred seventy-one million, five hundred seventy-one thousand, three hundred seventeen".