9887996252289 has 16 divisors (see below), whose sum is σ = 13291407933440. Its totient is φ = 6538319177040.

The previous prime is 9887996252263. The next prime is 9887996252291. The reversal of 9887996252289 is 9822526997889.

It is a happy number.

It is not a de Polignac number, because 9887996252289 - 2¹⁶ = 9887996186753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9887996252249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109409 + ... + 4921950.

It is an arithmetic number, because the mean of its divisors is an integer number (830712995840).

Almost surely, 2^{9887996252289} is an apocalyptic number.

It is an amenable number.

9887996252289 is a deficient number, since it is larger than the sum of its proper divisors (3403411681151).

9887996252289 is a wasteful number, since it uses less digits than its factorization.

9887996252289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035180.

The product of its digits is 5643509760, while the sum is 84.

The spelling of 9887996252289 in words is "nine trillion, eight hundred eighty-seven billion, nine hundred ninety-six million, two hundred fifty-two thousand, two hundred eighty-nine".