9999970799999 has 2 divisors, whose sum is σ = 9999970800000. Its totient is φ = 9999970799998.

The previous prime is 9999970799983. The next prime is 9999970800023.

9999970799999 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9999970799999 - 2⁴ = 9999970799983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999970799899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999985399999 + 4999985400000.

It is an arithmetic number, because the mean of its divisors is an integer number (4999985400000).

Almost surely, 2^{9999970799999} is an apocalyptic number.

9999970799999 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999970799999 is an equidigital number, since it uses as much as digits as its factorization.

9999970799999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170852435649, while the sum is 104.

The spelling of 9999970799999 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred seventy million, seven hundred ninety-nine thousand, nine hundred ninety-nine".