13438176453 has 60 divisors (see below), whose sum is σ = 22439184768. Its totient is φ = 8002631520.

The previous prime is 13438176431. The next prime is 13438176491. The reversal of 13438176453 is 35467183431.

13438176453 is a `hidden beast` number, since 1 + 3 + 438 + 176 + 45 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-13438176453 is a prime.

It is a super-2 number, since 2×13438176453² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13438176399 and 13438176408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438186453) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 408526 + ... + 440192.

Almost surely, 2^13438176453 is an apocalyptic number.

13438176453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13438176453 is a deficient number, since it is larger than the sum of its proper divisors (9001008315).

13438176453 is a wasteful number, since it uses less digits than its factorization.

13438176453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31736 (or 31714 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 13438176453 in words is "thirteen billion, four hundred thirty-eight million, one hundred seventy-six thousand, four hundred fifty-three".