718464222464816 has 40 divisors (see below), whose sum is σ = 1397587305343824. Its totient is φ = 357796565504000.

The previous prime is 718464222464749. The next prime is 718464222464827. The reversal of 718464222464816 is 618464222464817.

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 7 ways as a sum of consecutive naturals, for example, 343502060 + ... + 345587316.

Almost surely, 2^{718464222464816} is an apocalyptic number.

It is an amenable number.

718464222464816 is a deficient number, since it is larger than the sum of its proper divisors (679123082879008).

718464222464816 is a wasteful number, since it uses less digits than its factorization.

718464222464816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171309 (or 2171303 counting only the distinct ones).

The product of its digits is 198180864, while the sum is 65.

Subtracting from 718464222464816 its reverse (618464222464817), we obtain a palindrome (99999999999999).

The spelling of 718464222464816 in words is "seven hundred eighteen trillion, four hundred sixty-four billion, two hundred twenty-two million, four hundred sixty-four thousand, eight hundred sixteen".