9979244780 has 24 divisors (see below), whose sum is σ = 21443774352. Its totient is φ = 3898867392.

The previous prime is 9979244677. The next prime is 9979244879. The reversal of 9979244780 is 874429799.

9979244780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5801027 + ... + 5802746.

It is an arithmetic number, because the mean of its divisors is an integer number (893490598).

Almost surely, 2^9979244780 is an apocalyptic number.

It is an amenable number.

9979244780 is an abundant number, since it is smaller than the sum of its proper divisors (11464529572).

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

9979244780 is a wasteful number, since it uses less digits than its factorization.

9979244780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11603825 (or 11603823 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 59.

The square root of 9979244780 is about 99896.1699966520. The cubic root of 9979244780 is about 2152.9431321028.

The spelling of 9979244780 in words is "nine billion, nine hundred seventy-nine million, two hundred forty-four thousand, seven hundred eighty".