138134138340 has 96 divisors (see below), whose sum is σ = 430914484224. Its totient is φ = 32774565760.

The previous prime is 138134138297. The next prime is 138134138353. The reversal of 138134138340 is 43831431831.

138134138340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 31 ways as a sum of consecutive naturals, for example, 2195514 + ... + 2257553.

It is an arithmetic number, because the mean of its divisors is an integer number (4488692544).

Almost surely, 2^138134138340 is an apocalyptic number.

138134138340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138134138340 is an abundant number, since it is smaller than the sum of its proper divisors (292780345884).

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

138134138340 is a wasteful number, since it uses less digits than its factorization.

138134138340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453137 (or 4453135 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 138134138340 in words is "one hundred thirty-eight billion, one hundred thirty-four million, one hundred thirty-eight thousand, three hundred forty".