8120806830 has 48 divisors (see below), whose sum is σ = 21126937104. Its totient is φ = 2164231680.

The previous prime is 8120806807. The next prime is 8120806843. The reversal of 8120806830 is 386080218.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126145 + ... + 179315.

It is an arithmetic number, because the mean of its divisors is an integer number (440144523).

Almost surely, 2^8120806830 is an apocalyptic number.

8120806830 is an abundant number, since it is smaller than the sum of its proper divisors (13006130274).

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

8120806830 is a wasteful number, since it uses less digits than its factorization.

8120806830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54881 (or 54878 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 8120806830 is about 90115.5193626492. The cubic root of 8120806830 is about 2010.0169821094.

The spelling of 8120806830 in words is "eight billion, one hundred twenty million, eight hundred six thousand, eight hundred thirty".