13717471731 has 8 divisors (see below), whose sum is σ = 18291080640. Its totient is φ = 9144421992.

The previous prime is 13717471693. The next prime is 13717471741.

13717471731 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13717471731 - 2⁹ = 13717471219 is a prime.

It is a super-4 number, since 4×13717471731⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13717471741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78741 + ... + 183398.

It is an arithmetic number, because the mean of its divisors is an integer number (2286385080).

Almost surely, 2^13717471731 is an apocalyptic number.

13717471731 is a deficient number, since it is larger than the sum of its proper divisors (4573608909).

13717471731 is a wasteful number, since it uses less digits than its factorization.

13717471731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279585.

The product of its digits is 86436, while the sum is 42.

The spelling of 13717471731 in words is "thirteen billion, seven hundred seventeen million, four hundred seventy-one thousand, seven hundred thirty-one".