218496074008 has 8 divisors (see below), whose sum is σ = 409680138780. Its totient is φ = 109248037000.

The previous prime is 218496073997. The next prime is 218496074009. The reversal of 218496074008 is 800470694812.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218496074009) by changing a digit.

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 as a sum of consecutive naturals, namely, 13656004618 + ... + 13656004633.

Almost surely, 2^218496074008 is an apocalyptic number.

It is an amenable number.

218496074008 is a deficient number, since it is larger than the sum of its proper divisors (191184064772).

218496074008 is a wasteful number, since it uses less digits than its factorization.

218496074008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27312009257 (or 27312009253 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 218496074008 in words is "two hundred eighteen billion, four hundred ninety-six million, seventy-four thousand, eight".