328550649984 has 384 divisors, whose sum is σ = 1020431892480. Its totient is φ = 105110369280.

The previous prime is 328550649929. The next prime is 328550649997. The reversal of 328550649984 is 489946055823.

328550649984 is a `hidden beast` number, since 3 + 2 + 8 + 5 + 506 + 49 + 9 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122455107 + ... + 122457789.

It is an arithmetic number, because the mean of its divisors is an integer number (2657374720).

Almost surely, 2^328550649984 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 328550649984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510215946240).

328550649984 is an abundant number, since it is smaller than the sum of its proper divisors (691881242496).

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

328550649984 is a wasteful number, since it uses less digits than its factorization.

328550649984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 328550649984 in words is "three hundred twenty-eight billion, five hundred fifty million, six hundred forty-nine thousand, nine hundred eighty-four".