13713238647 has 12 divisors (see below), whose sum is σ = 20446979904. Its totient is φ = 8847250560.

The previous prime is 13713238631. The next prime is 13713238681. The reversal of 13713238647 is 74683231731.

13713238647 is a `hidden beast` number, since 1 + 371 + 3 + 238 + 6 + 47 = 666.

It is not a de Polignac number, because 13713238647 - 2⁴ = 13713238631 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13713237647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24575418 + ... + 24575975.

It is an arithmetic number, because the mean of its divisors is an integer number (1703914992).

Almost surely, 2^13713238647 is an apocalyptic number.

13713238647 is a deficient number, since it is larger than the sum of its proper divisors (6733741257).

13713238647 is a wasteful number, since it uses less digits than its factorization.

13713238647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49151430 (or 49151427 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 13713238647 in words is "thirteen billion, seven hundred thirteen million, two hundred thirty-eight thousand, six hundred forty-seven".