328910783922 has 270 divisors, whose sum is σ = 884384260551. Its totient is φ = 91098483840.

The previous prime is 328910783911. The next prime is 328910783947. The reversal of 328910783922 is 229387019823.

It can be written as a sum of positive squares in 5 ways, for example, as 21150801 + 328889633121 = 4599^2 + 573489^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=405531.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2094973068 + ... + 2094973224.

Almost surely, 2^328910783922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328910783922

328910783922 is an abundant number, since it is smaller than the sum of its proper divisors (555473476629).

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

328910783922 is an equidigital number, since it uses as much as digits as its factorization.

328910783922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 328910783922 in words is "three hundred twenty-eight billion, nine hundred ten million, seven hundred eighty-three thousand, nine hundred twenty-two".