13271537687 has 2 divisors, whose sum is σ = 13271537688. Its totient is φ = 13271537686.

The previous prime is 13271537623. The next prime is 13271537701. The reversal of 13271537687 is 78673517231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13271537687 - 2⁶ = 13271537623 is a prime.

It is a super-2 number, since 2×13271537687² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13271537087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6635768843 + 6635768844.

It is an arithmetic number, because the mean of its divisors is an integer number (6635768844).

Almost surely, 2^13271537687 is an apocalyptic number.

13271537687 is a deficient number, since it is larger than the sum of its proper divisors (1).

13271537687 is an equidigital number, since it uses as much as digits as its factorization.

13271537687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The spelling of 13271537687 in words is "thirteen billion, two hundred seventy-one million, five hundred thirty-seven thousand, six hundred eighty-seven".