2218679355806 has 8 divisors (see below), whose sum is σ = 3503177930280. Its totient is φ = 1050953379048.

The previous prime is 2218679355757. The next prime is 2218679355821. The reversal of 2218679355806 is 6085539768122.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29193149381 + ... + 29193149456.

It is an arithmetic number, because the mean of its divisors is an integer number (437897241285).

Almost surely, 2^{2218679355806} is an apocalyptic number.

2218679355806 is a deficient number, since it is larger than the sum of its proper divisors (1284498574474).

2218679355806 is a wasteful number, since it uses less digits than its factorization.

2218679355806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58386298858.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 2218679355806 in words is "two trillion, two hundred eighteen billion, six hundred seventy-nine million, three hundred fifty-five thousand, eight hundred six".