218870608328 has 32 divisors (see below), whose sum is σ = 418488184800. Its totient is φ = 107294848512.

The previous prime is 218870608301. The next prime is 218870608343. The reversal of 218870608328 is 823806078812.

It is a self number, because there is not a number n which added to its sum of digits gives 218870608328.

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, 1234958 + ... + 1401021.

It is an arithmetic number, because the mean of its divisors is an integer number (13077755775).

Almost surely, 2^218870608328 is an apocalyptic number.

It is an amenable number.

218870608328 is a deficient number, since it is larger than the sum of its proper divisors (199617576472).

218870608328 is a wasteful number, since it uses less digits than its factorization.

218870608328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636189 (or 2636185 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 218870608328 in words is "two hundred eighteen billion, eight hundred seventy million, six hundred eight thousand, three hundred twenty-eight".