218821869379062 has 64 divisors (see below), whose sum is σ = 497584280540160. Its totient is φ = 71243637145632.

The previous prime is 218821869379049. The next prime is 218821869379079. The reversal of 218821869379062 is 260973968128812.

218821869379062 is a `hidden beast` number, since 2 + 18 + 8 + 2 + 186 + 9 + 379 + 0 + 62 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273892008 + ... + 274689780.

It is an arithmetic number, because the mean of its divisors is an integer number (7774754383440).

Almost surely, 2^{218821869379062} is an apocalyptic number.

218821869379062 is an abundant number, since it is smaller than the sum of its proper divisors (278762411161098).

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

218821869379062 is a wasteful number, since it uses less digits than its factorization.

218821869379062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915954 (or 915948 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 218821869379062 in words is "two hundred eighteen trillion, eight hundred twenty-one billion, eight hundred sixty-nine million, three hundred seventy-nine thousand, sixty-two".