218523041484 has 24 divisors (see below), whose sum is σ = 556240469568. Its totient is φ = 66219103440.

The previous prime is 218523041479. The next prime is 218523041491. The reversal of 218523041484 is 484140325812.

It is an unprimeable number.

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, 827738662 + ... + 827738925.

It is an arithmetic number, because the mean of its divisors is an integer number (23176686232).

Almost surely, 2^218523041484 is an apocalyptic number.

It is an amenable number.

218523041484 is an abundant number, since it is smaller than the sum of its proper divisors (337717428084).

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

218523041484 is a wasteful number, since it uses less digits than its factorization.

218523041484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655477605 (or 1655477603 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 218523041484 in words is "two hundred eighteen billion, five hundred twenty-three million, forty-one thousand, four hundred eighty-four".