218421703468 has 6 divisors (see below), whose sum is σ = 382237981076. Its totient is φ = 109210851732.

The previous prime is 218421703463. The next prime is 218421703481. The reversal of 218421703468 is 864307124812.

It is not an unprimeable number, because it can be changed into a prime (218421703463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27302712930 + ... + 27302712937.

Almost surely, 2^218421703468 is an apocalyptic number.

It is an amenable number.

218421703468 is a deficient number, since it is larger than the sum of its proper divisors (163816277608).

218421703468 is a wasteful number, since it uses less digits than its factorization.

218421703468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54605425871 (or 54605425869 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 218421703468 in words is "two hundred eighteen billion, four hundred twenty-one million, seven hundred three thousand, four hundred sixty-eight".