218898481279 has 6 divisors (see below), whose sum is σ = 228829603856. Its totient is φ = 209381155500.

The previous prime is 218898481247. The next prime is 218898481289. The reversal of 218898481279 is 972184898812.

It is not a de Polignac number, because 218898481279 - 2⁵ = 218898481247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218898481289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206897847 + ... + 206898904.

Almost surely, 2^218898481279 is an apocalyptic number.

218898481279 is a deficient number, since it is larger than the sum of its proper divisors (9931122577).

218898481279 is an equidigital number, since it uses as much as digits as its factorization.

218898481279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413796797 (or 413796774 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 67.

The spelling of 218898481279 in words is "two hundred eighteen billion, eight hundred ninety-eight million, four hundred eighty-one thousand, two hundred seventy-nine".