999979996003 has 2 divisors, whose sum is σ = 999979996004. Its totient is φ = 999979996002.

The previous prime is 999979995991. The next prime is 999979996027. The reversal of 999979996003 is 300699979999.

It is a weak prime.

It is an emirp because it is prime and its reverse (300699979999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999979996003 - 2¹⁷ = 999979864931 is a prime.

It is not a weakly prime, because it can be changed into another prime (999974996003) 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 as a sum of consecutive naturals, namely, 499989998001 + 499989998002.

It is an arithmetic number, because the mean of its divisors is an integer number (499989998002).

Almost surely, 2^999979996003 is an apocalyptic number.

999979996003 is a deficient number, since it is larger than the sum of its proper divisors (1).

999979996003 is an equidigital number, since it uses as much as digits as its factorization.

999979996003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602654094, while the sum is 79.

The spelling of 999979996003 in words is "nine hundred ninety-nine billion, nine hundred seventy-nine million, nine hundred ninety-six thousand, three".