218209533038 has 8 divisors (see below), whose sum is σ = 374073485232. Its totient is φ = 93518371296.

The previous prime is 218209533001. The next prime is 218209533043. The reversal of 218209533038 is 830335902812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 218209533038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7793197595 + ... + 7793197622.

It is an arithmetic number, because the mean of its divisors is an integer number (46759185654).

Almost surely, 2^218209533038 is an apocalyptic number.

218209533038 is a deficient number, since it is larger than the sum of its proper divisors (155863952194).

218209533038 is a wasteful number, since it uses less digits than its factorization.

218209533038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15586395226.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 218209533038 in words is "two hundred eighteen billion, two hundred nine million, five hundred thirty-three thousand, thirty-eight".