138241447200 has 288 divisors, whose sum is σ = 504931432320. Its totient is φ = 36498816000.

The previous prime is 138241447193. The next prime is 138241447231. The reversal of 138241447200 is 2744142831.

138241447200 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 4 + 1 + 447 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×138241447200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2149917 + ... + 2213283.

It is an arithmetic number, because the mean of its divisors is an integer number (1753234140).

Almost surely, 2^138241447200 is an apocalyptic number.

138241447200 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 138241447200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252465716160).

138241447200 is an abundant number, since it is smaller than the sum of its proper divisors (366689985120).

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

138241447200 is a wasteful number, since it uses less digits than its factorization.

138241447200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63497 (or 63478 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 138241447200 in words is "one hundred thirty-eight billion, two hundred forty-one million, four hundred forty-seven thousand, two hundred".