120843785728 has 160 divisors (see below), whose sum is σ = 264665747808. Its totient is φ = 54892953600.

The previous prime is 120843785641. The next prime is 120843785761. The reversal of 120843785728 is 827587348021.

It is a congruent number.

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, 34614063 + ... + 34617553.

Almost surely, 2^120843785728 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 120843785728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132332873904).

120843785728 is an abundant number, since it is smaller than the sum of its proper divisors (143821962080).

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

120843785728 is an equidigital number, since it uses as much as digits as its factorization.

120843785728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664 (or 3648 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 120843785728 in words is "one hundred twenty billion, eight hundred forty-three million, seven hundred eighty-five thousand, seven hundred twenty-eight".