8381430056 has 16 divisors (see below), whose sum is σ = 15870778740. Its totient is φ = 4149222400.

The previous prime is 8381430037. The next prime is 8381430067. The reversal of 8381430056 is 6500341838.

It can be written as a sum of positive squares in 2 ways, for example, as 8381402500 + 27556 = 91550^2 + 166^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5185721 + ... + 5187336.

Almost surely, 2^8381430056 is an apocalyptic number.

It is an amenable number.

8381430056 is a deficient number, since it is larger than the sum of its proper divisors (7489348684).

8381430056 is a wasteful number, since it uses less digits than its factorization.

8381430056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373164 (or 10373160 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 8381430056 is about 91550.1504968725. The cubic root of 8381430056 is about 2031.2936383007.

The spelling of 8381430056 in words is "eight billion, three hundred eighty-one million, four hundred thirty thousand, fifty-six".