218698393102 has 16 divisors (see below), whose sum is σ = 374934896640. Its totient is φ = 93722041368.

The previous prime is 218698393091. The next prime is 218698393139. The reversal of 218698393102 is 201393896812.

218698393102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 218698393102.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 250158 + ... + 707089.

It is an arithmetic number, because the mean of its divisors is an integer number (23433431040).

Almost surely, 2^218698393102 is an apocalyptic number.

218698393102 is a deficient number, since it is larger than the sum of its proper divisors (156236503538).

218698393102 is a wasteful number, since it uses less digits than its factorization.

218698393102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973575.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 218698393102 in words is "two hundred eighteen billion, six hundred ninety-eight million, three hundred ninety-three thousand, one hundred two".