9689601791 has 16 divisors (see below), whose sum is σ = 10099832736. Its totient is φ = 9288000000.

The previous prime is 9689601787. The next prime is 9689601797. The reversal of 9689601791 is 1971069869.

It is a cyclic number.

It is not a de Polignac number, because 9689601791 - 2² = 9689601787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9689601797) 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 15 ways as a sum of consecutive naturals, for example, 3227291 + ... + 3230291.

It is an arithmetic number, because the mean of its divisors is an integer number (631239546).

Almost surely, 2^9689601791 is an apocalyptic number.

9689601791 is a deficient number, since it is larger than the sum of its proper divisors (410230945).

9689601791 is a wasteful number, since it uses less digits than its factorization.

9689601791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 9689601791 is about 98435.7749550437. The cubic root of 9689601791 is about 2131.9089025154.

The spelling of 9689601791 in words is "nine billion, six hundred eighty-nine million, six hundred one thousand, seven hundred ninety-one".