8381366224768 has 64 divisors (see below), whose sum is σ = 16816126572000. Its totient is φ = 4160870995968.

The previous prime is 8381366224747. The next prime is 8381366224771. The reversal of 8381366224768 is 8674226631838.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47649430 + ... + 47825002.

Almost surely, 2^{8381366224768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8381366224768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8408063286000).

8381366224768 is an abundant number, since it is smaller than the sum of its proper divisors (8434760347232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8381366224768 is a wasteful number, since it uses less digits than its factorization.

8381366224768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178239 (or 178227 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 64.

The spelling of 8381366224768 in words is "eight trillion, three hundred eighty-one billion, three hundred sixty-six million, two hundred twenty-four thousand, seven hundred sixty-eight".