8120884920 has 32 divisors (see below), whose sum is σ = 24362655120. Its totient is φ = 2165569280.

The previous prime is 8120884913. The next prime is 8120884957. The reversal of 8120884920 is 294880218.

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 7 ways as a sum of consecutive naturals, for example, 33836901 + ... + 33837140.

Almost surely, 2^8120884920 is an apocalyptic number.

It is an amenable number.

8120884920 is an abundant number, since it is smaller than the sum of its proper divisors (16241770200).

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

8120884920 is a wasteful number, since it uses less digits than its factorization.

8120884920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67674055 (or 67674051 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 8120884920 is about 90115.9526388086. The cubic root of 8120884920 is about 2010.0234248897.

The spelling of 8120884920 in words is "eight billion, one hundred twenty million, eight hundred eighty-four thousand, nine hundred twenty".