328123785193 has 8 divisors (see below), whose sum is σ = 347511659400. Its totient is φ = 308745519360.

The previous prime is 328123785181. The next prime is 328123785263. The reversal of 328123785193 is 391587321823.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17799028569 + 310324756624 = 133413^2 + 557068^2 .

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 328123785193 - 2³⁷ = 190684831721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328123785193.

It is not an unprimeable number, because it can be changed into a prime (328123785103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331718 + ... + 2468431.

It is an arithmetic number, because the mean of its divisors is an integer number (43438957425).

Almost surely, 2^328123785193 is an apocalyptic number.

It is an amenable number.

328123785193 is a deficient number, since it is larger than the sum of its proper divisors (19387874207).

328123785193 is a wasteful number, since it uses less digits than its factorization.

328123785193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804187.

The product of its digits is 2177280, while the sum is 52.

The spelling of 328123785193 in words is "three hundred twenty-eight billion, one hundred twenty-three million, seven hundred eighty-five thousand, one hundred ninety-three".