9999796999 has 2 divisors, whose sum is σ = 9999797000. Its totient is φ = 9999796998.

The previous prime is 9999796979. The next prime is 9999797021. The reversal of 9999796999 is 9996979999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9999796999 - 2⁹ = 9999796487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999796909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999898499 + 4999898500.

It is an arithmetic number, because the mean of its divisors is an integer number (4999898500).

Almost surely, 2^9999796999 is an apocalyptic number.

9999796999 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999796999 is an equidigital number, since it uses as much as digits as its factorization.

9999796999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1807962282, while the sum is 85.

The square root of 9999796999 is about 99998.9849898488. The cubic root of 9999796999 is about 2154.4201115200.

The spelling of 9999796999 in words is "nine billion, nine hundred ninety-nine million, seven hundred ninety-six thousand, nine hundred ninety-nine".