12813139953 has 96 divisors (see below), whose sum is σ = 20832215040. Its totient is φ = 7844273280.

The previous prime is 12813139939. The next prime is 12813139981. The reversal of 12813139953 is 35993131821.

12813139953 is a `hidden beast` number, since 1 + 281 + 313 + 9 + 9 + 53 = 666.

It is not a de Polignac number, because 12813139953 - 2²⁴ = 12796362737 is a prime.

It is a super-4 number, since 4×12813139953⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12813139899 and 12813139908.

It is not an unprimeable number, because it can be changed into a prime (12813139753) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29728648 + ... + 29729078.

It is an arithmetic number, because the mean of its divisors is an integer number (217002240).

Almost surely, 2^12813139953 is an apocalyptic number.

It is an amenable number.

12813139953 is a deficient number, since it is larger than the sum of its proper divisors (8019075087).

12813139953 is a wasteful number, since it uses less digits than its factorization.

12813139953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 637 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The spelling of 12813139953 in words is "twelve billion, eight hundred thirteen million, one hundred thirty-nine thousand, nine hundred fifty-three".