816242242618 has 64 divisors (see below), whose sum is σ = 1362063413376. Its totient is φ = 366803078400.

The previous prime is 816242242609. The next prime is 816242242619.

816242242618 is nontrivially palindromic in base 10.

816242242618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (816242242619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154092546 + ... + 154097842.

It is an arithmetic number, because the mean of its divisors is an integer number (21282240834).

Almost surely, 2^816242242618 is an apocalyptic number.

816242242618 is a deficient number, since it is larger than the sum of its proper divisors (545821170758).

816242242618 is a wasteful number, since it uses less digits than its factorization.

816242242618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980 (or 5958 counting only the distinct ones).

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

The spelling of 816242242618 in words is "eight hundred sixteen billion, two hundred forty-two million, two hundred forty-two thousand, six hundred eighteen".