9689937985 has 32 divisors (see below), whose sum is σ = 14644143360. Its totient is φ = 5990761728.

The previous prime is 9689937953. The next prime is 9689938031. The reversal of 9689937985 is 5897399869.

It is not a de Polignac number, because 9689937985 - 2⁵ = 9689937953 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 228070 + ... + 267199.

It is an arithmetic number, because the mean of its divisors is an integer number (457629480).

Almost surely, 2^9689937985 is an apocalyptic number.

It is an amenable number.

9689937985 is a deficient number, since it is larger than the sum of its proper divisors (4954205375).

9689937985 is a wasteful number, since it uses less digits than its factorization.

9689937985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495337.

The product of its digits is 264539520, while the sum is 73.

The square root of 9689937985 is about 98437.4826222207. The cubic root of 9689937985 is about 2131.9335587297.

The spelling of 9689937985 in words is "nine billion, six hundred eighty-nine million, nine hundred thirty-seven thousand, nine hundred eighty-five".