328273777380 has 96 divisors (see below), whose sum is σ = 932254694784. Its totient is φ = 86294467584.

The previous prime is 328273777373. The next prime is 328273777387. The reversal of 328273777380 is 83777372823.

It is an interprime number because it is at equal distance from previous prime (328273777373) and next prime (328273777387).

It is a self number, because there is not a number n which added to its sum of digits gives 328273777380.

It is not an unprimeable number, because it can be changed into a prime (328273777387) 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, 8622747 + ... + 8660733.

It is an arithmetic number, because the mean of its divisors is an integer number (9710986404).

Almost surely, 2^328273777380 is an apocalyptic number.

328273777380 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 328273777380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466127347392).

328273777380 is an abundant number, since it is smaller than the sum of its proper divisors (603980917404).

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

328273777380 is a wasteful number, since it uses less digits than its factorization.

328273777380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40045 (or 40043 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 57.

The spelling of 328273777380 in words is "three hundred twenty-eight billion, two hundred seventy-three million, seven hundred seventy-seven thousand, three hundred eighty".