9682720905 has 128 divisors (see below), whose sum is σ = 18563489280. Its totient is φ = 4248207360.

The previous prime is 9682720837. The next prime is 9682720909. The reversal of 9682720905 is 5090272869.

It is not a de Polignac number, because 9682720905 - 2⁹ = 9682720393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9682720909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35995111 + ... + 35995379.

It is an arithmetic number, because the mean of its divisors is an integer number (145027260).

Almost surely, 2^9682720905 is an apocalyptic number.

It is an amenable number.

9682720905 is a deficient number, since it is larger than the sum of its proper divisors (8880768375).

9682720905 is a wasteful number, since it uses less digits than its factorization.

9682720905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 9682720905 is about 98400.8176033106. The cubic root of 9682720905 is about 2131.4041381914.

The spelling of 9682720905 in words is "nine billion, six hundred eighty-two million, seven hundred twenty thousand, nine hundred five".