384220051728 has 80 divisors (see below), whose sum is σ = 1002667670400. Its totient is φ = 126770918400.

The previous prime is 384220051703. The next prime is 384220051757. The reversal of 384220051728 is 827150022483.

It is a self number, because there is not a number n which added to its sum of digits gives 384220051728.

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, 22917813 + ... + 22934571.

It is an arithmetic number, because the mean of its divisors is an integer number (12533345880).

Almost surely, 2^384220051728 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 384220051728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501333835200).

384220051728 is an abundant number, since it is smaller than the sum of its proper divisors (618447618672).

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

384220051728 is a wasteful number, since it uses less digits than its factorization.

384220051728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21600 (or 21594 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 384220051728 in words is "three hundred eighty-four billion, two hundred twenty million, fifty-one thousand, seven hundred twenty-eight".