9999000009967 has 2 divisors, whose sum is σ = 9999000009968. Its totient is φ = 9999000009966.

The previous prime is 9999000009959. The next prime is 9999000010067. The reversal of 9999000009967 is 7699000009999.

It is a weak prime.

It is an emirp because it is prime and its reverse (7699000009999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9999000009967 - 2³ = 9999000009959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999000001967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999500004983 + 4999500004984.

It is an arithmetic number, because the mean of its divisors is an integer number (4999500004984).

Almost surely, 2^{9999000009967} is an apocalyptic number.

9999000009967 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999000009967 is an equidigital number, since it uses as much as digits as its factorization.

9999000009967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22320522, while the sum is 67.

The spelling of 9999000009967 in words is "nine trillion, nine hundred ninety-nine billion, nine thousand, nine hundred sixty-seven".