9786773432640 has 448 divisors, whose sum is σ = 33606483805440. Its totient is φ = 2404924784640.

The previous prime is 9786773432539. The next prime is 9786773432641. The reversal of 9786773432640 is 462343776879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9786773432641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252002664 + ... + 252041496.

It is an arithmetic number, because the mean of its divisors is an integer number (75014472780).

Almost surely, 2^{9786773432640} 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 9786773432640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16803241902720).

9786773432640 is an abundant number, since it is smaller than the sum of its proper divisors (23819710372800).

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

9786773432640 is a wasteful number, since it uses less digits than its factorization.

9786773432640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39250 (or 39240 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 66.

The spelling of 9786773432640 in words is "nine trillion, seven hundred eighty-six billion, seven hundred seventy-three million, four hundred thirty-two thousand, six hundred forty".