218432272105892 has 24 divisors (see below), whose sum is σ = 411661297250112. Its totient is φ = 100814778064800.

The previous prime is 218432272105891. The next prime is 218432272105903. The reversal of 218432272105892 is 298501272234812.

218432272105892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×218432272105892² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (218432272105891) 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, 56498417 + ... + 60240647.

It is an arithmetic number, because the mean of its divisors is an integer number (17152554052088).

Almost surely, 2^{218432272105892} is an apocalyptic number.

It is an amenable number.

218432272105892 is a deficient number, since it is larger than the sum of its proper divisors (193229025144220).

218432272105892 is a wasteful number, since it uses less digits than its factorization.

218432272105892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864739 (or 4864737 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 218432272105892 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred seventy-two million, one hundred five thousand, eight hundred ninety-two".