8921649080 has 16 divisors (see below), whose sum is σ = 20073710520. Its totient is φ = 3568659616.

The previous prime is 8921649049. The next prime is 8921649127. The reversal of 8921649080 is 809461298.

8921649080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 111520574 + ... + 111520653.

Almost surely, 2^8921649080 is an apocalyptic number.

It is an amenable number.

8921649080 is an abundant number, since it is smaller than the sum of its proper divisors (11152061440).

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

8921649080 is a wasteful number, since it uses less digits than its factorization.

8921649080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223041238 (or 223041234 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 8921649080 is about 94454.4815241712. The cubic root of 8921649080 is about 2074.0300556041.

The spelling of 8921649080 in words is "eight billion, nine hundred twenty-one million, six hundred forty-nine thousand, eighty".