999980000099 has 32 divisors (see below), whose sum is σ = 1134577497600. Its totient is φ = 875614993920.

The previous prime is 999980000087. The next prime is 999980000113. The reversal of 999980000099 is 990000089999.

It is a Cunningham number, because it is equal to 999990²-1.

It is not a de Polignac number, because 999980000099 - 2¹² = 999979996003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999979999996 and 999980000050.

It is not an unprimeable number, because it can be changed into a prime (999980000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18973514 + ... + 19026144.

It is an arithmetic number, because the mean of its divisors is an integer number (35455546800).

Almost surely, 2^999980000099 is an apocalyptic number.

999980000099 is a deficient number, since it is larger than the sum of its proper divisors (134597497501).

999980000099 is a wasteful number, since it uses less digits than its factorization.

999980000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53723.

The product of its (nonzero) digits is 4251528, while the sum is 62.

The spelling of 999980000099 in words is "nine hundred ninety-nine billion, nine hundred eighty million, ninety-nine", and thus it is an aban number.