38387734223728 has 80 divisors (see below), whose sum is σ = 77565028020480. Its totient is φ = 18382290167808.

The previous prime is 38387734223723. The next prime is 38387734223767. The reversal of 38387734223728 is 82732243778383.

38387734223728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38387734223723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27992076 + ... + 29331412.

It is an arithmetic number, because the mean of its divisors is an integer number (969562850256).

Almost surely, 2^{38387734223728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38387734223728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38782514010240).

38387734223728 is an abundant number, since it is smaller than the sum of its proper divisors (39177293796752).

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

38387734223728 is a wasteful number, since it uses less digits than its factorization.

38387734223728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339874 (or 1339868 counting only the distinct ones).

The product of its digits is 455196672, while the sum is 67.

The spelling of 38387734223728 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred thirty-four million, two hundred twenty-three thousand, seven hundred twenty-eight".