328125727278 has 16 divisors (see below), whose sum is σ = 729168282960. Its totient is φ = 109375242408.

The previous prime is 328125727247. The next prime is 328125727289. The reversal of 328125727278 is 872727521823.

It is a happy number.

328125727278 is a `hidden beast` number, since 3 + 281 + 25 + 7 + 272 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 6076402357 = 328125727278 / (3 + 2 + 8 + 1 + 2 + 5 + 7 + 2 + 7 + 2 + 7 + 8).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3038201125 + ... + 3038201232.

It is an arithmetic number, because the mean of its divisors is an integer number (45573017685).

Almost surely, 2^328125727278 is an apocalyptic number.

328125727278 is an abundant number, since it is smaller than the sum of its proper divisors (401042555682).

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

328125727278 is a wasteful number, since it uses less digits than its factorization.

328125727278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076402368 (or 6076402362 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 328125727278 in words is "three hundred twenty-eight billion, one hundred twenty-five million, seven hundred twenty-seven thousand, two hundred seventy-eight".