328357789632 has 616 divisors, whose sum is σ = 1093380541200. Its totient is φ = 97229611008.

The previous prime is 328357789631. The next prime is 328357789637. The reversal of 328357789632 is 236987753823.

328357789632 is a `hidden beast` number, since 3 + 28 + 3 + 577 + 8 + 9 + 6 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 328357789632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328357789631) by changing a digit.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 1220660794 + ... + 1220661062.

Almost surely, 2^328357789632 is an apocalyptic number.

328357789632 is a gapful number since it is divisible by the number (32) 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 328357789632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546690270600).

328357789632 is an abundant number, since it is smaller than the sum of its proper divisors (765022751568).

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

328357789632 is an equidigital number, since it uses as much as digits as its factorization.

328357789632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 310 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 328357789632 in words is "three hundred twenty-eight billion, three hundred fifty-seven million, seven hundred eighty-nine thousand, six hundred thirty-two".