218488203452 has 12 divisors (see below), whose sum is σ = 391680072336. Its totient is φ = 106579611360.

The previous prime is 218488203431. The next prime is 218488203457. The reversal of 218488203452 is 254302884812.

It is a junction number, because it is equal to n+sod(n) for n = 218488203397 and 218488203406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218488203457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666122408 + ... + 666122735.

It is an arithmetic number, because the mean of its divisors is an integer number (32640006028).

Almost surely, 2^218488203452 is an apocalyptic number.

It is an amenable number.

218488203452 is a deficient number, since it is larger than the sum of its proper divisors (173191868884).

218488203452 is a wasteful number, since it uses less digits than its factorization.

218488203452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332245188 (or 1332245186 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 218488203452 in words is "two hundred eighteen billion, four hundred eighty-eight million, two hundred three thousand, four hundred fifty-two".