218807463018 has 16 divisors (see below), whose sum is σ = 437671726560. Its totient is φ = 72926354256.

The previous prime is 218807462981. The next prime is 218807463037. The reversal of 218807463018 is 810364708812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316528 + ... + 2409131.

It is an arithmetic number, because the mean of its divisors is an integer number (27354482910).

Almost surely, 2^218807463018 is an apocalyptic number.

218807463018 is an abundant number, since it is smaller than the sum of its proper divisors (218864263542).

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

218807463018 is a wasteful number, since it uses less digits than its factorization.

218807463018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733381.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 218807463018 in words is "two hundred eighteen billion, eight hundred seven million, four hundred sixty-three thousand, eighteen".