328285778005 has 8 divisors (see below), whose sum is σ = 393963767352. Its totient is φ = 262614733248.

The previous prime is 328285778003. The next prime is 328285778059. The reversal of 328285778005 is 500877582823.

It can be written as a sum of positive squares in 4 ways, for example, as 20650264804 + 307635513201 = 143702^2 + 554649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328285778005 - 2¹ = 328285778003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328285778003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631574 + ... + 1821703.

It is an arithmetic number, because the mean of its divisors is an integer number (49245470919).

Almost surely, 2^328285778005 is an apocalyptic number.

It is an amenable number.

328285778005 is a deficient number, since it is larger than the sum of its proper divisors (65677989347).

328285778005 is a wasteful number, since it uses less digits than its factorization.

328285778005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472295.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 328285778005 in words is "three hundred twenty-eight billion, two hundred eighty-five million, seven hundred seventy-eight thousand, five".