218074100808 has 32 divisors (see below), whose sum is σ = 549478056960. Its totient is φ = 72118992960.

The previous prime is 218074100779. The next prime is 218074100819. The reversal of 218074100808 is 808001470812.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 35770263 + ... + 35776358.

It is an arithmetic number, because the mean of its divisors is an integer number (17171189280).

Almost surely, 2^218074100808 is an apocalyptic number.

It is an amenable number.

218074100808 is an abundant number, since it is smaller than the sum of its proper divisors (331403956152).

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

218074100808 is a wasteful number, since it uses less digits than its factorization.

218074100808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71546757 (or 71546753 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The spelling of 218074100808 in words is "two hundred eighteen billion, seventy-four million, one hundred thousand, eight hundred eight".