327638045544 has 128 divisors (see below), whose sum is σ = 845694864000. Its totient is φ = 105699078144.

The previous prime is 327638045543. The next prime is 327638045549. The reversal of 327638045544 is 445540836723.

It is not an unprimeable number, because it can be changed into a prime (327638045543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152176372 + ... + 152178524.

It is an arithmetic number, because the mean of its divisors is an integer number (6606991125).

Almost surely, 2^327638045544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 327638045544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422847432000).

327638045544 is an abundant number, since it is smaller than the sum of its proper divisors (518056818456).

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

327638045544 is a wasteful number, since it uses less digits than its factorization.

327638045544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 51.

The spelling of 327638045544 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, forty-five thousand, five hundred forty-four".