13834521717 has 16 divisors (see below), whose sum is σ = 19107598080. Its totient is φ = 8893080000.

The previous prime is 13834521713. The next prime is 13834521731. The reversal of 13834521717 is 71712543831.

It is not a de Polignac number, because 13834521717 - 2² = 13834521713 is a prime.

It is a super-2 number, since 2×13834521717² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13834521713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40534 + ... + 171207.

It is an arithmetic number, because the mean of its divisors is an integer number (1194224880).

Almost surely, 2^13834521717 is an apocalyptic number.

It is an amenable number.

13834521717 is a deficient number, since it is larger than the sum of its proper divisors (5273076363).

13834521717 is a wasteful number, since it uses less digits than its factorization.

13834521717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212524.

The product of its digits is 141120, while the sum is 42.

The spelling of 13834521717 in words is "thirteen billion, eight hundred thirty-four million, five hundred twenty-one thousand, seven hundred seventeen".