328273384320 has 768 divisors, whose sum is σ = 1377546393600. Its totient is φ = 70406848512.

The previous prime is 328273384319. The next prime is 328273384321. The reversal of 328273384320 is 23483372823.

328273384320 is a `hidden beast` number, since 3 + 28 + 273 + 38 + 4 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (328273384319) and next prime (328273384321).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328273384321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49146741 + ... + 49153419.

It is an arithmetic number, because the mean of its divisors is an integer number (1793680200).

Almost surely, 2^328273384320 is an apocalyptic number.

328273384320 is a gapful number since it is divisible by the number (30) 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 328273384320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688773196800).

328273384320 is an abundant number, since it is smaller than the sum of its proper divisors (1049273009280).

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

328273384320 is a wasteful number, since it uses less digits than its factorization.

328273384320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787 (or 6772 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 328273384320 in words is "three hundred twenty-eight billion, two hundred seventy-three million, three hundred eighty-four thousand, three hundred twenty".