328678925837 has 4 divisors (see below), whose sum is σ = 348012980316. Its totient is φ = 309344871360.

The previous prime is 328678925833. The next prime is 328678925843. The reversal of 328678925837 is 738529876823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 738529876823 = 19 ⋅38869993517.

It can be written as a sum of positive squares in 2 ways, for example, as 174900440521 + 153778485316 = 418211^2 + 392146^2 .

It is a cyclic number.

It is not a de Polignac number, because 328678925837 - 2² = 328678925833 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 (328678925833) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9667027214 + ... + 9667027247.

It is an arithmetic number, because the mean of its divisors is an integer number (87003245079).

Almost surely, 2^328678925837 is an apocalyptic number.

It is an amenable number.

328678925837 is a deficient number, since it is larger than the sum of its proper divisors (19334054479).

328678925837 is a wasteful number, since it uses less digits than its factorization.

328678925837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19334054478.

The product of its digits is 243855360, while the sum is 68.

The spelling of 328678925837 in words is "three hundred twenty-eight billion, six hundred seventy-eight million, nine hundred twenty-five thousand, eight hundred thirty-seven".