13642726871 has 4 divisors (see below), whose sum is σ = 13654163712. Its totient is φ = 13631290032.

The previous prime is 13642726861. The next prime is 13642726907. The reversal of 13642726871 is 17862724631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17862724631 = 62131 ⋅287501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13642726871 is a prime.

It is a super-2 number, since 2×13642726871² (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 (13642726841) 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, 5716631 + ... + 5719016.

It is an arithmetic number, because the mean of its divisors is an integer number (3413540928).

Almost surely, 2^13642726871 is an apocalyptic number.

13642726871 is a deficient number, since it is larger than the sum of its proper divisors (11436841).

13642726871 is a wasteful number, since it uses less digits than its factorization.

13642726871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436840.

The product of its digits is 677376, while the sum is 47.

The spelling of 13642726871 in words is "thirteen billion, six hundred forty-two million, seven hundred twenty-six thousand, eight hundred seventy-one".