138204844980 has 24 divisors (see below), whose sum is σ = 386973566112. Its totient is φ = 36854625312.

The previous prime is 138204844963. The next prime is 138204845011. The reversal of 138204844980 is 89448402831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151706982 + ... + 1151707101.

It is an arithmetic number, because the mean of its divisors is an integer number (16123898588).

Almost surely, 2^138204844980 is an apocalyptic number.

138204844980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138204844980 is an abundant number, since it is smaller than the sum of its proper divisors (248768721132).

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

138204844980 is a wasteful number, since it uses less digits than its factorization.

138204844980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303414095 (or 2303414093 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 138204844980 in words is "one hundred thirty-eight billion, two hundred four million, eight hundred forty-four thousand, nine hundred eighty".