8815534820 has 24 divisors (see below), whose sum is σ = 18658397184. Its totient is φ = 3498447456.

The previous prime is 8815534813. The next prime is 8815534843. The reversal of 8815534820 is 284355188.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732802 + ... + 1737881.

It is an arithmetic number, because the mean of its divisors is an integer number (777433216).

Almost surely, 2^8815534820 is an apocalyptic number.

It is an amenable number.

8815534820 is an abundant number, since it is smaller than the sum of its proper divisors (9842862364).

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

8815534820 is a wasteful number, since it uses less digits than its factorization.

8815534820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470819 (or 3470817 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 8815534820 is about 93891.0795549822. The cubic root of 8815534820 is about 2065.7743868697.

The spelling of 8815534820 in words is "eight billion, eight hundred fifteen million, five hundred thirty-four thousand, eight hundred twenty".