218432285100408 has 32 divisors (see below), whose sum is σ = 560839650935760. Its totient is φ = 70842903275520.

The previous prime is 218432285100353. The next prime is 218432285100467. The reversal of 218432285100408 is 804001582234812.

218432285100408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 122991150633 + ... + 122991152408.

Almost surely, 2^{218432285100408} is an apocalyptic number.

It is an amenable number.

218432285100408 is an abundant number, since it is smaller than the sum of its proper divisors (342407365835352).

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

218432285100408 is a wasteful number, since it uses less digits than its factorization.

218432285100408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245982303087 (or 245982303083 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 218432285100408 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred eighty-five million, one hundred thousand, four hundred eight".