218865302404 has 12 divisors (see below), whose sum is σ = 437730604864. Its totient is φ = 93799415304.

The previous prime is 218865302323. The next prime is 218865302407. The reversal of 218865302404 is 404203568812.

It is a happy number.

218865302404 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (218865302407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908308944 + ... + 3908308999.

Almost surely, 2^218865302404 is an apocalyptic number.

It is an amenable number.

218865302404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

218865302404 is a wasteful number, since it uses less digits than its factorization.

218865302404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816617954 (or 7816617952 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 218865302404 in words is "two hundred eighteen billion, eight hundred sixty-five million, three hundred two thousand, four hundred four".