8418721056068 has 24 divisors (see below), whose sum is σ = 14905042938240. Its totient is φ = 4160422712160.

The previous prime is 8418721056061. The next prime is 8418721056079. The reversal of 8418721056068 is 8606501278148.

It is not an unprimeable number, because it can be changed into a prime (8418721056061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35550908 + ... + 35786931.

It is an arithmetic number, because the mean of its divisors is an integer number (621043455760).

Almost surely, 2^{8418721056068} is an apocalyptic number.

It is an amenable number.

8418721056068 is a deficient number, since it is larger than the sum of its proper divisors (6486321882172).

8418721056068 is a wasteful number, since it uses less digits than its factorization.

8418721056068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71338187 (or 71338185 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 8418721056068 in words is "eight trillion, four hundred eighteen billion, seven hundred twenty-one million, fifty-six thousand, sixty-eight".