8640028896 has 24 divisors (see below), whose sum is σ = 22680076104. Its totient is φ = 2880009600.

The previous prime is 8640028849. The next prime is 8640028907. The reversal of 8640028896 is 6988200468.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45000055 + ... + 45000246.

It is an arithmetic number, because the mean of its divisors is an integer number (945003171).

Almost surely, 2^8640028896 is an apocalyptic number.

It is an amenable number.

8640028896 is an abundant number, since it is smaller than the sum of its proper divisors (14040047208).

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

8640028896 is a wasteful number, since it uses less digits than its factorization.

8640028896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90000314 (or 90000306 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 8640028896 is about 92951.7557445797. The cubic root of 8640028896 is about 2051.9734235773.

The spelling of 8640028896 in words is "eight billion, six hundred forty million, twenty-eight thousand, eight hundred ninety-six".