9639834665496 has 96 divisors (see below), whose sum is σ = 28038265344000. Its totient is φ = 2753840357184.

The previous prime is 9639834665491. The next prime is 9639834665537. The reversal of 9639834665496 is 6945664389369.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9639834665491) 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 23 ways as a sum of consecutive naturals, for example, 7594825 + ... + 8772743.

It is an arithmetic number, because the mean of its divisors is an integer number (292065264000).

Almost surely, 2^{9639834665496} is an apocalyptic number.

It is an amenable number.

9639834665496 is an abundant number, since it is smaller than the sum of its proper divisors (18398430678504).

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

9639834665496 is a wasteful number, since it uses less digits than its factorization.

9639834665496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184901 (or 1184890 counting only the distinct ones).

The product of its digits is 5441955840, while the sum is 78.

The spelling of 9639834665496 in words is "nine trillion, six hundred thirty-nine billion, eight hundred thirty-four million, six hundred sixty-five thousand, four hundred ninety-six".