9775729152 has 240 divisors, whose sum is σ = 33119404032. Its totient is φ = 2717245440.

The previous prime is 9775729111. The next prime is 9775729163. The reversal of 9775729152 is 2519275779.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1189377 + ... + 1197567.

Almost surely, 2^9775729152 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 9775729152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16559702016).

9775729152 is an abundant number, since it is smaller than the sum of its proper divisors (23343674880).

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

9775729152 is a wasteful number, since it uses less digits than its factorization.

9775729152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259 (or 8240 counting only the distinct ones).

The product of its digits is 2778300, while the sum is 54.

The square root of 9775729152 is about 98872.2870778258. The cubic root of 9775729152 is about 2138.2068678044.

The spelling of 9775729152 in words is "nine billion, seven hundred seventy-five million, seven hundred twenty-nine thousand, one hundred fifty-two".