9774746784 has 144 divisors (see below), whose sum is σ = 30603212640. Its totient is φ = 2934766080.

The previous prime is 9774746777. The next prime is 9774746789. The reversal of 9774746784 is 4876474779.

9774746784 is a `hidden beast` number, since 97 + 7 + 4 + 7 + 467 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (9774746789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331159 + ... + 359465.

It is an arithmetic number, because the mean of its divisors is an integer number (212522310).

Almost surely, 2^9774746784 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 9774746784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15301606320).

9774746784 is an abundant number, since it is smaller than the sum of its proper divisors (20828465856).

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

9774746784 is a wasteful number, since it uses less digits than its factorization.

9774746784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28443 (or 28432 counting only the distinct ones).

The product of its digits is 66382848, while the sum is 63.

The square root of 9774746784 is about 98867.3190897781. The cubic root of 9774746784 is about 2138.1352422395.

The spelling of 9774746784 in words is "nine billion, seven hundred seventy-four million, seven hundred forty-six thousand, seven hundred eighty-four".