418244217822 has 160 divisors (see below), whose sum is σ = 978986072064. Its totient is φ = 133309022400.

The previous prime is 418244217793. The next prime is 418244217841. The reversal of 418244217822 is 228712442814.

418244217822 is a `hidden beast` number, since 4 + 18 + 2 + 442 + 178 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 419502228 + ... + 419503224.

Almost surely, 2^418244217822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 418244217822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489493036032).

418244217822 is an abundant number, since it is smaller than the sum of its proper divisors (560741854242).

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

418244217822 is a wasteful number, since it uses less digits than its factorization.

418244217822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1947 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The spelling of 418244217822 in words is "four hundred eighteen billion, two hundred forty-four million, two hundred seventeen thousand, eight hundred twenty-two".