618255888822 has 96 divisors (see below), whose sum is σ = 1574036755200. Its totient is φ = 172906349760.

The previous prime is 618255888793. The next prime is 618255888839. The reversal of 618255888822 is 228888552816.

618255888822 is a `hidden beast` number, since 6 + 1 + 8 + 25 + 588 + 8 + 8 + 22 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 618255888822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15936853 + ... + 15975599.

It is an arithmetic number, because the mean of its divisors is an integer number (16396216200).

Almost surely, 2^618255888822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618255888822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787018377600).

618255888822 is an abundant number, since it is smaller than the sum of its proper divisors (955780866378).

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

618255888822 is a wasteful number, since it uses less digits than its factorization.

618255888822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44978 (or 44975 counting only the distinct ones).

The product of its digits is 39321600, while the sum is 63.

The spelling of 618255888822 in words is "six hundred eighteen billion, two hundred fifty-five million, eight hundred eighty-eight thousand, eight hundred twenty-two".