8911575648 has 72 divisors (see below), whose sum is σ = 26216190000. Its totient is φ = 2868090624.

The previous prime is 8911575641. The next prime is 8911575683. The reversal of 8911575648 is 8465751198.

It is a happy number.

8911575648 is a `hidden beast` number, since 8 + 9 + 1 + 1 + 575 + 64 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 8911575594 and 8911575603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8911575641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525148 + ... + 541851.

It is an arithmetic number, because the mean of its divisors is an integer number (364113750).

Almost surely, 2^8911575648 is an apocalyptic number.

It is an amenable number.

8911575648 is an abundant number, since it is smaller than the sum of its proper divisors (17304614352).

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

8911575648 is a wasteful number, since it uses less digits than its factorization.

8911575648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067044 (or 1067033 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 8911575648 is about 94401.1421964798. The cubic root of 8911575648 is about 2073.2491660041.

The spelling of 8911575648 in words is "eight billion, nine hundred eleven million, five hundred seventy-five thousand, six hundred forty-eight".