218385733214 has 32 divisors (see below), whose sum is σ = 365219712000. Its totient is φ = 97085550240.

The previous prime is 218385733213. The next prime is 218385733219. The reversal of 218385733214 is 412337583812.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218385733213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403687 + ... + 1551485.

It is an arithmetic number, because the mean of its divisors is an integer number (11413116000).

Almost surely, 2^218385733214 is an apocalyptic number.

218385733214 is a deficient number, since it is larger than the sum of its proper divisors (146833978786).

218385733214 is a wasteful number, since it uses less digits than its factorization.

218385733214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149288.

The product of its digits is 967680, while the sum is 47.

The spelling of 218385733214 in words is "two hundred eighteen billion, three hundred eighty-five million, seven hundred thirty-three thousand, two hundred fourteen".