8628918820 has 48 divisors (see below), whose sum is σ = 19805603328. Its totient is φ = 3143738880.

The previous prime is 8628918797. The next prime is 8628918829. The reversal of 8628918820 is 288198268.

It is not an unprimeable number, because it can be changed into a prime (8628918829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398802 + ... + 419881.

It is an arithmetic number, because the mean of its divisors is an integer number (412616736).

Almost surely, 2^8628918820 is an apocalyptic number.

It is an amenable number.

8628918820 is an abundant number, since it is smaller than the sum of its proper divisors (11176684508).

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

8628918820 is a wasteful number, since it uses less digits than its factorization.

8628918820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818740 (or 818738 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 52.

The square root of 8628918820 is about 92891.9739267069. The cubic root of 8628918820 is about 2051.0935129648.

The spelling of 8628918820 in words is "eight billion, six hundred twenty-eight million, nine hundred eighteen thousand, eight hundred twenty".