618816242242 has 64 divisors (see below), whose sum is σ = 1078476768000. Its totient is φ = 263180206080.

The previous prime is 618816242197. The next prime is 618816242251. The reversal of 618816242242 is 242242618816.

It is a junction number, because it is equal to n+sod(n) for n = 618816242192 and 618816242201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111115234 + ... + 111120802.

It is an arithmetic number, because the mean of its divisors is an integer number (16851199500).

Almost surely, 2^618816242242 is an apocalyptic number.

618816242242 is a deficient number, since it is larger than the sum of its proper divisors (459660525758).

618816242242 is a wasteful number, since it uses less digits than its factorization.

618816242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7291.

The product of its digits is 589824, while the sum is 46.

The spelling of 618816242242 in words is "six hundred eighteen billion, eight hundred sixteen million, two hundred forty-two thousand, two hundred forty-two".