9889377440 has 48 divisors (see below), whose sum is σ = 23464015848. Its totient is φ = 3938758656.

The previous prime is 9889377391. The next prime is 9889377457. The reversal of 9889377440 is 447739889.

9889377440 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 4 ways, for example, as 4570300816 + 5319076624 = 67604^2 + 72932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9889377440.

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, 95357 + ... + 169916.

Almost surely, 2^9889377440 is an apocalyptic number.

It is an amenable number.

9889377440 is an abundant number, since it is smaller than the sum of its proper divisors (13574638408).

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

9889377440 is a wasteful number, since it uses less digits than its factorization.

9889377440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265521 (or 265513 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 59.

The square root of 9889377440 is about 99445.3490114042. The cubic root of 9889377440 is about 2146.4609119992.

The spelling of 9889377440 in words is "nine billion, eight hundred eighty-nine million, three hundred seventy-seven thousand, four hundred forty".