13271686814853 has 24 divisors (see below), whose sum is σ = 19308471775320. Its totient is φ = 8784198973440.

The previous prime is 13271686814831. The next prime is 13271686814857. The reversal of 13271686814853 is 35841868617231.

It is a happy number.

13271686814853 is a `hidden beast` number, since 1 + 3 + 2 + 71 + 6 + 8 + 6 + 81 + 485 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4918534821729 + 8353151993124 = 2217777^2 + 2890182^2 .

It is not a de Polignac number, because 13271686814853 - 2¹⁶ = 13271686749317 is a prime.

It is a super-2 number, since 2×13271686814853² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13271686814857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8393488 + ... + 9848553.

It is an arithmetic number, because the mean of its divisors is an integer number (804519657305).

Almost surely, 2^{13271686814853} is an apocalyptic number.

It is an amenable number.

13271686814853 is a deficient number, since it is larger than the sum of its proper divisors (6036784960467).

13271686814853 is a wasteful number, since it uses less digits than its factorization.

13271686814853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18242629 (or 18242626 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 13271686814853 in words is "thirteen trillion, two hundred seventy-one billion, six hundred eighty-six million, eight hundred fourteen thousand, eight hundred fifty-three".