138850424748 has 384 divisors, whose sum is σ = 463760640000. Its totient is φ = 34969853952.

The previous prime is 138850424743. The next prime is 138850424759. The reversal of 138850424748 is 847424058831.

138850424748 is a `hidden beast` number, since 1 + 3 + 88 + 50 + 42 + 474 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 138850424694 and 138850424703.

It is not an unprimeable number, because it can be changed into a prime (138850424743) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21729538 + ... + 21735926.

It is an arithmetic number, because the mean of its divisors is an integer number (1207710000).

Almost surely, 2^138850424748 is an apocalyptic number.

138850424748 is a gapful number since it is divisible by the number (18) 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 138850424748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231880320000).

138850424748 is an abundant number, since it is smaller than the sum of its proper divisors (324910215252).

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

138850424748 is a wasteful number, since it uses less digits than its factorization.

138850424748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6534 (or 6526 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 138850424748 in words is "one hundred thirty-eight billion, eight hundred fifty million, four hundred twenty-four thousand, seven hundred forty-eight".