218883490242 has 32 divisors (see below), whose sum is σ = 464741064000. Its totient is φ = 68488132608.

The previous prime is 218883490229. The next prime is 218883490253. The reversal of 218883490242 is 242094388812.

It is a super-4 number, since 4×218883490242⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2792367 + ... + 2869682.

It is an arithmetic number, because the mean of its divisors is an integer number (14523158250).

Almost surely, 2^218883490242 is an apocalyptic number.

218883490242 is an abundant number, since it is smaller than the sum of its proper divisors (245857573758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218883490242 is a wasteful number, since it uses less digits than its factorization.

218883490242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662450.

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 218883490242 in words is "two hundred eighteen billion, eight hundred eighty-three million, four hundred ninety thousand, two hundred forty-two".