138081338384 has 40 divisors (see below), whose sum is σ = 291880113120. Its totient is φ = 62758572800.

The previous prime is 138081338347. The next prime is 138081338401. The reversal of 138081338384 is 483833180831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386307 + ... + 2443485.

It is an arithmetic number, because the mean of its divisors is an integer number (7297002828).

Almost surely, 2^138081338384 is an apocalyptic number.

It is an amenable number.

138081338384 is an abundant number, since it is smaller than the sum of its proper divisors (153798774736).

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

138081338384 is a wasteful number, since it uses less digits than its factorization.

138081338384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70919 (or 70913 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 138081338384 in words is "one hundred thirty-eight billion, eighty-one million, three hundred thirty-eight thousand, three hundred eighty-four".