64327816333818 has 24 divisors (see below), whose sum is σ = 143872965565056. Its totient is φ = 20750908494600.

The previous prime is 64327816333769. The next prime is 64327816333829. The reversal of 64327816333818 is 81833361872346.

64327816333818 is a `hidden beast` number, since 6 + 4 + 3 + 278 + 16 + 3 + 338 + 18 = 666.

64327816333818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 57641411928 + ... + 57641413043.

It is an arithmetic number, because the mean of its divisors is an integer number (5994706898544).

Almost surely, 2^{64327816333818} is an apocalyptic number.

64327816333818 is an abundant number, since it is smaller than the sum of its proper divisors (79545149231238).

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

64327816333818 is a wasteful number, since it uses less digits than its factorization.

64327816333818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115282825010 (or 115282825007 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 64327816333818 in words is "sixty-four trillion, three hundred twenty-seven billion, eight hundred sixteen million, three hundred thirty-three thousand, eight hundred eighteen".