218704473272 has 64 divisors (see below), whose sum is σ = 437763268800. Its totient is φ = 102076876800.

The previous prime is 218704473257. The next prime is 218704473287. The reversal of 218704473272 is 272374407812.

218704473272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (218704473257) and next prime (218704473287).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8177522 + ... + 8204222.

It is an arithmetic number, because the mean of its divisors is an integer number (6840051075).

Almost surely, 2^218704473272 is an apocalyptic number.

It is an amenable number.

218704473272 is an abundant number, since it is smaller than the sum of its proper divisors (219058795528).

218704473272 is a wasteful number, since it uses less digits than its factorization.

218704473272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27216 (or 27212 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 47.

The spelling of 218704473272 in words is "two hundred eighteen billion, seven hundred four million, four hundred seventy-three thousand, two hundred seventy-two".