218432272105812 has 24 divisors (see below), whose sum is σ = 511020091304800. Its totient is φ = 72618644550816.

The previous prime is 218432272105811. The next prime is 218432272105877. The reversal of 218432272105812 is 218501272234812.

218432272105812 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 not an unprimeable number, because it can be changed into a prime (218432272105811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24014097487 + ... + 24014106582.

Almost surely, 2^{218432272105812} is an apocalyptic number.

It is an amenable number.

218432272105812 is an abundant number, since it is smaller than the sum of its proper divisors (292587819198988).

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

218432272105812 is a wasteful number, since it uses less digits than its factorization.

218432272105812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48028204455 (or 48028204453 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 218432272105812 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred seventy-two million, one hundred five thousand, eight hundred twelve".