9799489640 has 16 divisors (see below), whose sum is σ = 22048851780. Its totient is φ = 3919795840.

The previous prime is 9799489607. The next prime is 9799489657. The reversal of 9799489640 is 469849979.

It can be written as a sum of positive squares in 2 ways, for example, as 9443563684 + 355925956 = 97178^2 + 18866^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122493581 + ... + 122493660.

Almost surely, 2^9799489640 is an apocalyptic number.

It is an amenable number.

9799489640 is an abundant number, since it is smaller than the sum of its proper divisors (12249362140).

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

9799489640 is a wasteful number, since it uses less digits than its factorization.

9799489640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244987252 (or 244987248 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 65.

The square root of 9799489640 is about 98992.3716252924. The cubic root of 9799489640 is about 2139.9378122669.

The spelling of 9799489640 in words is "nine billion, seven hundred ninety-nine million, four hundred eighty-nine thousand, six hundred forty".