9769752720 has 240 divisors, whose sum is σ = 40381915392. Its totient is φ = 2061296640.

The previous prime is 9769752659. The next prime is 9769752737. The reversal of 9769752720 is 272579679.

9769752720 is a `hidden beast` number, since 9 + 7 + 6 + 97 + 527 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9036 + ... + 140075.

Almost surely, 2^9769752720 is an apocalyptic number.

9769752720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9769752720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20190957696).

9769752720 is an abundant number, since it is smaller than the sum of its proper divisors (30612162672).

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

9769752720 is a wasteful number, since it uses less digits than its factorization.

9769752720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149150 (or 149141 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 54.

The square root of 9769752720 is about 98842.0594686290. The cubic root of 9769752720 is about 2137.7710451404.

The spelling of 9769752720 in words is "nine billion, seven hundred sixty-nine million, seven hundred fifty-two thousand, seven hundred twenty".