218492013852 has 36 divisors (see below), whose sum is σ = 631199151856. Its totient is φ = 62426289600.

The previous prime is 218492013847. The next prime is 218492013881. The reversal of 218492013852 is 258310294812.

218492013852 is a `hidden beast` number, since 2 + 184 + 92 + 0 + 1 + 385 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 218492013798 and 218492013807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433515649 + ... + 433516152.

Almost surely, 2^218492013852 is an apocalyptic number.

It is an amenable number.

218492013852 is an abundant number, since it is smaller than the sum of its proper divisors (412707138004).

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

218492013852 is a wasteful number, since it uses less digits than its factorization.

218492013852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867031818 (or 867031813 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 218492013852 in words is "two hundred eighteen billion, four hundred ninety-two million, thirteen thousand, eight hundred fifty-two".