9879016842 has 24 divisors (see below), whose sum is σ = 21408069540. Its totient is φ = 3292462080.

The previous prime is 9879016831. The next prime is 9879016859. The reversal of 9879016842 is 2486109789.

9879016842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7044412761 + 2834604081 = 83931^2 + 53241^2 .

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 11 ways as a sum of consecutive naturals, for example, 75492 + ... + 159552.

Almost surely, 2^9879016842 is an apocalyptic number.

9879016842 is an abundant number, since it is smaller than the sum of its proper divisors (11529052698).

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

9879016842 is a wasteful number, since it uses less digits than its factorization.

9879016842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90598 (or 90595 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 9879016842 is about 99393.2434423990. The cubic root of 9879016842 is about 2145.7110707553.

The spelling of 9879016842 in words is "nine billion, eight hundred seventy-nine million, sixteen thousand, eight hundred forty-two".