216721869438034 has 8 divisors (see below), whose sum is σ = 325083704127408. Its totient is φ = 108360634728900.

The previous prime is 216721869438001. The next prime is 216721869438047. The reversal of 216721869438034 is 430834968127612.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149090932 + ... + 150537535.

It is an arithmetic number, because the mean of its divisors is an integer number (40635463015926).

Almost surely, 2^{216721869438034} is an apocalyptic number.

216721869438034 is a deficient number, since it is larger than the sum of its proper divisors (108361834689374).

216721869438034 is a wasteful number, since it uses less digits than its factorization.

216721869438034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299990120.

The product of its (nonzero) digits is 83607552, while the sum is 64.

The spelling of 216721869438034 in words is "two hundred sixteen trillion, seven hundred twenty-one billion, eight hundred sixty-nine million, four hundred thirty-eight thousand, thirty-four".