328007775784 has 64 divisors (see below), whose sum is σ = 668010147840. Its totient is φ = 150090071040.

The previous prime is 328007775763. The next prime is 328007775817. The reversal of 328007775784 is 487577700823.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20504029 + ... + 20520019.

It is an arithmetic number, because the mean of its divisors is an integer number (10437658560).

Almost surely, 2^328007775784 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 328007775784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334005073920).

328007775784 is an abundant number, since it is smaller than the sum of its proper divisors (340002372056).

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

328007775784 is a wasteful number, since it uses less digits than its factorization.

328007775784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17690 (or 17686 counting only the distinct ones).

The product of its (nonzero) digits is 18439680, while the sum is 58.

The spelling of 328007775784 in words is "three hundred twenty-eight billion, seven million, seven hundred seventy-five thousand, seven hundred eighty-four".