12813837555138 has 32 divisors (see below), whose sum is σ = 27083976272640. Its totient is φ = 4030353594000.

The previous prime is 12813837555121. The next prime is 12813837555139. The reversal of 12813837555138 is 83155573831821.

It is not an unprimeable number, because it can be changed into a prime (12813837555139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223879920 + ... + 223937147.

It is an arithmetic number, because the mean of its divisors is an integer number (846374258520).

Almost surely, 2^{12813837555138} is an apocalyptic number.

12813837555138 is an abundant number, since it is smaller than the sum of its proper divisors (14270138717502).

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

12813837555138 is a wasteful number, since it uses less digits than its factorization.

12813837555138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447817342.

The product of its digits is 24192000, while the sum is 60.

The spelling of 12813837555138 in words is "twelve trillion, eight hundred thirteen billion, eight hundred thirty-seven million, five hundred fifty-five thousand, one hundred thirty-eight".