9720252735 has 32 divisors (see below), whose sum is σ = 16232384448. Its totient is φ = 4962247680.

The previous prime is 9720252719. The next prime is 9720252739. The reversal of 9720252735 is 5372520279.

It is not a de Polignac number, because 9720252735 - 2⁴ = 9720252719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720252739) 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 31 ways as a sum of consecutive naturals, for example, 116512 + ... + 181701.

It is an arithmetic number, because the mean of its divisors is an integer number (507262014).

Almost surely, 2^9720252735 is an apocalyptic number.

9720252735 is a deficient number, since it is larger than the sum of its proper divisors (6512131713).

9720252735 is a wasteful number, since it uses less digits than its factorization.

9720252735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298315.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 9720252735 is about 98591.3420894553. The cubic root of 9720252735 is about 2134.1544794767.

The spelling of 9720252735 in words is "nine billion, seven hundred twenty million, two hundred fifty-two thousand, seven hundred thirty-five".