9559049640 has 256 divisors, whose sum is σ = 34621931520. Its totient is φ = 2065029120.

The previous prime is 9559049581. The next prime is 9559049651. The reversal of 9559049640 is 469409559.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1115452 + ... + 1123988.

It is an arithmetic number, because the mean of its divisors is an integer number (135241920).

Almost surely, 2^9559049640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9559049640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17310965760).

9559049640 is an abundant number, since it is smaller than the sum of its proper divisors (25062881880).

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

9559049640 is a wasteful number, since it uses less digits than its factorization.

9559049640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632 (or 8628 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 9559049640 is about 97770.3924508846. The cubic root of 9559049640 is about 2122.2908693910.

The spelling of 9559049640 in words is "nine billion, five hundred fifty-nine million, forty-nine thousand, six hundred forty".