120868784388 has 96 divisors (see below), whose sum is σ = 342509005440. Its totient is φ = 36556416000.

The previous prime is 120868784303. The next prime is 120868784389. The reversal of 120868784388 is 883487868021.

120868784388 is a `hidden beast` number, since 1 + 20 + 86 + 87 + 84 + 388 = 666.

It is not an unprimeable number, because it can be changed into a prime (120868784389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521308 + ... + 716588.

It is an arithmetic number, because the mean of its divisors is an integer number (3567802140).

Almost surely, 2^120868784388 is an apocalyptic number.

120868784388 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 120868784388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171254502720).

120868784388 is an abundant number, since it is smaller than the sum of its proper divisors (221640221052).

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

120868784388 is a wasteful number, since it uses less digits than its factorization.

120868784388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195826 (or 195818 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 63.

The spelling of 120868784388 in words is "one hundred twenty billion, eight hundred sixty-eight million, seven hundred eighty-four thousand, three hundred eighty-eight".