8909879646 has 32 divisors (see below), whose sum is σ = 19264613760. Its totient is φ = 2737600416.

The previous prime is 8909879611. The next prime is 8909879653. The reversal of 8909879646 is 6469789098.

8909879646 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 15 ways as a sum of consecutive naturals, for example, 1051956 + ... + 1060391.

It is an arithmetic number, because the mean of its divisors is an integer number (602019180).

Almost surely, 2^8909879646 is an apocalyptic number.

8909879646 is an abundant number, since it is smaller than the sum of its proper divisors (10354734114).

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

8909879646 is a wasteful number, since it uses less digits than its factorization.

8909879646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112408.

The product of its (nonzero) digits is 47029248, while the sum is 66.

The square root of 8909879646 is about 94392.1588162915. The cubic root of 8909879646 is about 2073.1176345385.

The spelling of 8909879646 in words is "eight billion, nine hundred nine million, eight hundred seventy-nine thousand, six hundred forty-six".