138338738130 has 32 divisors (see below), whose sum is σ = 333586507968. Its totient is φ = 36715492800.

The previous prime is 138338738099. The next prime is 138338738141. The reversal of 138338738130 is 31837833831.

It is a self number, because there is not a number n which added to its sum of digits gives 138338738130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10920901 + ... + 10933560.

It is an arithmetic number, because the mean of its divisors is an integer number (10424578374).

Almost surely, 2^138338738130 is an apocalyptic number.

138338738130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138338738130 is an abundant number, since it is smaller than the sum of its proper divisors (195247769838).

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

138338738130 is a wasteful number, since it uses less digits than its factorization.

138338738130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21854682.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 138338738130 in words is "one hundred thirty-eight billion, three hundred thirty-eight million, seven hundred thirty-eight thousand, one hundred thirty".