216674974338 has 8 divisors (see below), whose sum is σ = 433349948688. Its totient is φ = 72224991444.

The previous prime is 216674974289. The next prime is 216674974349. The reversal of 216674974338 is 833479476612.

216674974338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

216674974338 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18056247856 + ... + 18056247867.

It is an arithmetic number, because the mean of its divisors is an integer number (54168743586).

Almost surely, 2^216674974338 is an apocalyptic number.

216674974338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

216674974338 is a wasteful number, since it uses less digits than its factorization.

216674974338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36112495728.

The product of its digits is 36578304, while the sum is 60.

The spelling of 216674974338 in words is "two hundred sixteen billion, six hundred seventy-four million, nine hundred seventy-four thousand, three hundred thirty-eight".