328939787790 has 96 divisors (see below), whose sum is σ = 900819223200. Its totient is φ = 83048613120.

The previous prime is 328939787789. The next prime is 328939787791. The reversal of 328939787790 is 97787939823.

328939787790 is a `hidden beast` number, since 3 + 2 + 89 + 397 + 8 + 77 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (328939787789) and next prime (328939787791).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328939787791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2712576 + ... + 2831244.

It is an arithmetic number, because the mean of its divisors is an integer number (9383533575).

Almost surely, 2^328939787790 is an apocalyptic number.

328939787790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 328939787790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450409611600).

328939787790 is an abundant number, since it is smaller than the sum of its proper divisors (571879435410).

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

328939787790 is a wasteful number, since it uses less digits than its factorization.

328939787790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120322 (or 120319 counting only the distinct ones).

The product of its (nonzero) digits is 288054144, while the sum is 72.

The spelling of 328939787790 in words is "three hundred twenty-eight billion, nine hundred thirty-nine million, seven hundred eighty-seven thousand, seven hundred ninety".