12813587451 has 32 divisors (see below), whose sum is σ = 21705377280. Its totient is φ = 7318535328.

The previous prime is 12813587407. The next prime is 12813587459. The reversal of 12813587451 is 15478531821.

12813587451 is a `hidden beast` number, since 1 + 2 + 8 + 13 + 587 + 4 + 51 = 666.

It is not a de Polignac number, because 12813587451 - 2²⁹ = 12276716539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12813587397 and 12813587406.

It is not an unprimeable number, because it can be changed into a prime (12813587459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407640 + ... + 437946.

It is an arithmetic number, because the mean of its divisors is an integer number (678293040).

Almost surely, 2^12813587451 is an apocalyptic number.

12813587451 is a deficient number, since it is larger than the sum of its proper divisors (8891789829).

12813587451 is a wasteful number, since it uses less digits than its factorization.

12813587451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32560 (or 32554 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The spelling of 12813587451 in words is "twelve billion, eight hundred thirteen million, five hundred eighty-seven thousand, four hundred fifty-one".