8008643578643 has 16 divisors (see below), whose sum is σ = 8148643027200. Its totient is φ = 7870000740000.

The previous prime is 8008643578609. The next prime is 8008643578669. The reversal of 8008643578643 is 3468753468008.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8008643578643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8008643574643) 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 15 ways as a sum of consecutive naturals, for example, 10972508 + ... + 11679606.

It is an arithmetic number, because the mean of its divisors is an integer number (509290189200).

Almost surely, 2^{8008643578643} is an apocalyptic number.

8008643578643 is a deficient number, since it is larger than the sum of its proper divisors (139999448557).

8008643578643 is a wasteful number, since it uses less digits than its factorization.

8008643578643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708058.

The product of its (nonzero) digits is 92897280, while the sum is 62.

The spelling of 8008643578643 in words is "eight trillion, eight billion, six hundred forty-three million, five hundred seventy-eight thousand, six hundred forty-three".