138818483030520 has 192 divisors, whose sum is σ = 453672869176800. Its totient is φ = 36812101985280.

The previous prime is 138818483030519. The next prime is 138818483030543. The reversal of 138818483030520 is 25030384818831.

138818483030520 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 1 + 8 + 4 + 83 + 0 + 30 + 520 = 666.

138818483030520 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2377854691 + ... + 2377913069.

Almost surely, 2^{138818483030520} is an apocalyptic number.

138818483030520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138818483030520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226836434588400).

138818483030520 is an abundant number, since it is smaller than the sum of its proper divisors (314854386146280).

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

138818483030520 is a wasteful number, since it uses less digits than its factorization.

138818483030520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95070 (or 95063 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 138818483030520 in words is "one hundred thirty-eight trillion, eight hundred eighteen billion, four hundred eighty-three million, thirty thousand, five hundred twenty".