8623778648 has 32 divisors (see below), whose sum is σ = 16707600000. Its totient is φ = 4168692480.

The previous prime is 8623778627. The next prime is 8623778651. The reversal of 8623778648 is 8468773268.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243578 + ... + 276726.

It is an arithmetic number, because the mean of its divisors is an integer number (522112500).

Almost surely, 2^8623778648 is an apocalyptic number.

It is an amenable number.

8623778648 is a deficient number, since it is larger than the sum of its proper divisors (8083821352).

8623778648 is a wasteful number, since it uses less digits than its factorization.

8623778648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34235 (or 34231 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 59.

The square root of 8623778648 is about 92864.3023341047. The cubic root of 8623778648 is about 2050.6861592043.

The spelling of 8623778648 in words is "eight billion, six hundred twenty-three million, seven hundred seventy-eight thousand, six hundred forty-eight".