8641008478 has 8 divisors (see below), whose sum is σ = 12963441168. Its totient is φ = 4319861424.

The previous prime is 8641008451. The next prime is 8641008533. The reversal of 8641008478 is 8748001468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304426 + ... + 331597.

It is an arithmetic number, because the mean of its divisors is an integer number (1620430146).

Almost surely, 2^8641008478 is an apocalyptic number.

8641008478 is a deficient number, since it is larger than the sum of its proper divisors (4322432690).

8641008478 is a wasteful number, since it uses less digits than its factorization.

8641008478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642818.

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 8641008478 is about 92957.0248986057. The cubic root of 8641008478 is about 2052.0509696247.

The spelling of 8641008478 in words is "eight billion, six hundred forty-one million, eight thousand, four hundred seventy-eight".