9663522009887 has 4 divisors (see below), whose sum is σ = 10172128431480. Its totient is φ = 9154915588296.

The previous prime is 9663522009877. The next prime is 9663522009899. The reversal of 9663522009887 is 7889002253669.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9663522009887 - 2²⁴ = 9663505232671 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 (9663522009877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254303210768 + ... + 254303210805.

It is an arithmetic number, because the mean of its divisors is an integer number (2543032107870).

Almost surely, 2^{9663522009887} is an apocalyptic number.

9663522009887 is a deficient number, since it is larger than the sum of its proper divisors (508606421593).

9663522009887 is a wasteful number, since it uses less digits than its factorization.

9663522009887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508606421592.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 9663522009887 in words is "nine trillion, six hundred sixty-three billion, five hundred twenty-two million, nine thousand, eight hundred eighty-seven".