218380074693 has 8 divisors (see below), whose sum is σ = 317643745056. Its totient is φ = 132351560400.

The previous prime is 218380074683. The next prime is 218380074739. The reversal of 218380074693 is 396470083812.

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

It is not a de Polignac number, because 218380074693 - 2⁹ = 218380074181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218380074613) 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, 3308788978 + ... + 3308789043.

It is an arithmetic number, because the mean of its divisors is an integer number (39705468132).

Almost surely, 2^218380074693 is an apocalyptic number.

It is an amenable number.

218380074693 is a deficient number, since it is larger than the sum of its proper divisors (99263670363).

218380074693 is a wasteful number, since it uses less digits than its factorization.

218380074693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617578035.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 218380074693 in words is "two hundred eighteen billion, three hundred eighty million, seventy-four thousand, six hundred ninety-three".