8378444018 has 16 divisors (see below), whose sum is σ = 14367870720. Its totient is φ = 3589555776.

The previous prime is 8378444017. The next prime is 8378444023. The reversal of 8378444018 is 8104448738.

8378444018 is digitally balanced in base 5, 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 (8378444017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56663 + ... + 141306.

It is an arithmetic number, because the mean of its divisors is an integer number (897991920).

Almost surely, 2^8378444018 is an apocalyptic number.

8378444018 is a deficient number, since it is larger than the sum of its proper divisors (5989426702).

8378444018 is a wasteful number, since it uses less digits than its factorization.

8378444018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201001.

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 8378444018 is about 91533.8408349611. The cubic root of 8378444018 is about 2031.0523811241.

The spelling of 8378444018 in words is "eight billion, three hundred seventy-eight million, four hundred forty-four thousand, eighteen".