218709800448 has 40 divisors (see below), whose sum is σ = 582656581848. Its totient is φ = 72903266304.

The previous prime is 218709800431. The next prime is 218709800461. The reversal of 218709800448 is 844008907812.

It is a self number, because there is not a number n which added to its sum of digits gives 218709800448.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71193061 + ... + 71196132.

Almost surely, 2^218709800448 is an apocalyptic number.

It is an amenable number.

218709800448 is an abundant number, since it is smaller than the sum of its proper divisors (363946781400).

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

218709800448 is an equidigital number, since it uses as much as digits as its factorization.

218709800448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142389214 (or 142389198 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 218709800448 in words is "two hundred eighteen billion, seven hundred nine million, eight hundred thousand, four hundred forty-eight".