138388792060 has 48 divisors (see below), whose sum is σ = 310758275520. Its totient is φ = 51583462400.

The previous prime is 138388792049. The next prime is 138388792081. The reversal of 138388792060 is 60297883831.

138388792060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 138388791992 and 138388792010.

It is a congruent number.

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, 1980640 + ... + 2049319.

It is an arithmetic number, because the mean of its divisors is an integer number (6474130740).

Almost surely, 2^138388792060 is an apocalyptic number.

138388792060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138388792060 is an abundant number, since it is smaller than the sum of its proper divisors (172369483460).

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

138388792060 is a wasteful number, since it uses less digits than its factorization.

138388792060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030086 (or 4030084 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 138388792060 in words is "one hundred thirty-eight billion, three hundred eighty-eight million, seven hundred ninety-two thousand, sixty".