138818826196 has 6 divisors (see below), whose sum is σ = 242932945850. Its totient is φ = 69409413096.

The previous prime is 138818826187. The next prime is 138818826227. The reversal of 138818826196 is 691628818831.

138818826196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 104012700100 + 34806126096 = 322510^2 + 186564^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17352353271 + ... + 17352353278.

Almost surely, 2^138818826196 is an apocalyptic number.

It is an amenable number.

138818826196 is a deficient number, since it is larger than the sum of its proper divisors (104114119654).

138818826196 is a wasteful number, since it uses less digits than its factorization.

138818826196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34704706553 (or 34704706551 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 61.

The spelling of 138818826196 in words is "one hundred thirty-eight billion, eight hundred eighteen million, eight hundred twenty-six thousand, one hundred ninety-six".