8959191648 has 48 divisors (see below), whose sum is σ = 25655870016. Its totient is φ = 2714906240.

The previous prime is 8959191617. The next prime is 8959191667. The reversal of 8959191648 is 8461919598.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×8959191648² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8959191591 and 8959191600.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4240986 + ... + 4243097.

It is an arithmetic number, because the mean of its divisors is an integer number (534497292).

Almost surely, 2^8959191648 is an apocalyptic number.

8959191648 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8959191648 is an abundant number, since it is smaller than the sum of its proper divisors (16696678368).

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

8959191648 is a wasteful number, since it uses less digits than its factorization.

8959191648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484107 (or 8484099 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 60.

The square root of 8959191648 is about 94653.0065449587. The cubic root of 8959191648 is about 2076.9351781032.

The spelling of 8959191648 in words is "eight billion, nine hundred fifty-nine million, one hundred ninety-one thousand, six hundred forty-eight".