12811424136 has 32 divisors (see below), whose sum is σ = 36604069440. Its totient is φ = 3660406848.

The previous prime is 12811424117. The next prime is 12811424137. The reversal of 12811424136 is 63142411821.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12811424097 and 12811424106.

It is not an unprimeable number, because it can be changed into a prime (12811424137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38129071 + ... + 38129406.

It is an arithmetic number, because the mean of its divisors is an integer number (1143877170).

Almost surely, 2^12811424136 is an apocalyptic number.

It is an amenable number.

12811424136 is an abundant number, since it is smaller than the sum of its proper divisors (23792645304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12811424136 is a wasteful number, since it uses less digits than its factorization.

12811424136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76258493 (or 76258489 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

Adding to 12811424136 its reverse (63142411821), we get a palindrome (75953835957).

The spelling of 12811424136 in words is "twelve billion, eight hundred eleven million, four hundred twenty-four thousand, one hundred thirty-six".