9879557829 has 16 divisors (see below), whose sum is σ = 13385820672. Its totient is φ = 6480075888.

The previous prime is 9879557819. The next prime is 9879557833. The reversal of 9879557829 is 9287559789.

9879557829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9879557829 - 2⁵ = 9879557797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879557819) by changing a digit.

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, 135562 + ... + 195284.

It is an arithmetic number, because the mean of its divisors is an integer number (836613792).

Almost surely, 2^9879557829 is an apocalyptic number.

It is an amenable number.

9879557829 is a deficient number, since it is larger than the sum of its proper divisors (3506262843).

9879557829 is a wasteful number, since it uses less digits than its factorization.

9879557829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60616.

The product of its digits is 114307200, while the sum is 69.

The square root of 9879557829 is about 99395.9648527042. The cubic root of 9879557829 is about 2145.7502372913.

The spelling of 9879557829 in words is "nine billion, eight hundred seventy-nine million, five hundred fifty-seven thousand, eight hundred twenty-nine".