138838240758180 has 96 divisors (see below), whose sum is σ = 393634504585728. Its totient is φ = 36560479334400.

The previous prime is 138838240758179. The next prime is 138838240758187. The reversal of 138838240758180 is 81857042838831.

It is not an unprimeable number, because it can be changed into a prime (138838240758187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35944201 + ... + 39618960.

It is an arithmetic number, because the mean of its divisors is an integer number (4100359422768).

Almost surely, 2^{138838240758180} is an apocalyptic number.

138838240758180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138838240758180 is an abundant number, since it is smaller than the sum of its proper divisors (254796263827548).

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

138838240758180 is a wasteful number, since it uses less digits than its factorization.

138838240758180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75563557 (or 75563555 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 66.

The spelling of 138838240758180 in words is "one hundred thirty-eight trillion, eight hundred thirty-eight billion, two hundred forty million, seven hundred fifty-eight thousand, one hundred eighty".