218680939795 has 8 divisors (see below), whose sum is σ = 263001578400. Its totient is φ = 174555118080.

The previous prime is 218680939787. The next prime is 218680939861. The reversal of 218680939795 is 597939086812.

218680939795 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.

It is not a de Polignac number, because 218680939795 - 2³ = 218680939787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218680939795.

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 7 ways as a sum of consecutive naturals, for example, 48701751 + ... + 48706240.

It is an arithmetic number, because the mean of its divisors is an integer number (32875197300).

Almost surely, 2^218680939795 is an apocalyptic number.

218680939795 is a deficient number, since it is larger than the sum of its proper divisors (44320638605).

218680939795 is an equidigital number, since it uses as much as digits as its factorization.

218680939795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97408445.

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 218680939795 in words is "two hundred eighteen billion, six hundred eighty million, nine hundred thirty-nine thousand, seven hundred ninety-five".