218883856697 has 8 divisors (see below), whose sum is σ = 239082000192. Its totient is φ = 198735648400.

The previous prime is 218883856687. The next prime is 218883856721. The reversal of 218883856697 is 796658388812.

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

It is a cyclic number.

It is not a de Polignac number, because 218883856697 - 2¹⁴ = 218883840313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 218883856697.

It is not an unprimeable number, because it can be changed into a prime (218883856627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12474629 + ... + 12492162.

It is an arithmetic number, because the mean of its divisors is an integer number (29885250024).

Almost surely, 2^218883856697 is an apocalyptic number.

It is an amenable number.

218883856697 is a deficient number, since it is larger than the sum of its proper divisors (20198143495).

218883856697 is a wasteful number, since it uses less digits than its factorization.

218883856697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24967599.

The product of its digits is 278691840, while the sum is 71.

The spelling of 218883856697 in words is "two hundred eighteen billion, eight hundred eighty-three million, eight hundred fifty-six thousand, six hundred ninety-seven".