999876984833 has 2 divisors, whose sum is σ = 999876984834. Its totient is φ = 999876984832.

The previous prime is 999876984787. The next prime is 999876984971. The reversal of 999876984833 is 338489678999.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 889611148864 + 110265835969 = 943192^2 + 332063^2 .

It is a cyclic number.

It is not a de Polignac number, because 999876984833 - 2¹² = 999876980737 is a prime.

It is not a weakly prime, because it can be changed into another prime (999876984133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499938492416 + 499938492417.

It is an arithmetic number, because the mean of its divisors is an integer number (499938492417).

It is a Proth number, since it is equal to 953557 ⋅ 2²⁰ + 1 and 953557 < 2²⁰.

Almost surely, 2^999876984833 is an apocalyptic number.

It is an amenable number.

999876984833 is a deficient number, since it is larger than the sum of its proper divisors (1).

999876984833 is an equidigital number, since it uses as much as digits as its factorization.

999876984833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5079158784, while the sum is 83.

The spelling of 999876984833 in words is "nine hundred ninety-nine billion, eight hundred seventy-six million, nine hundred eighty-four thousand, eight hundred thirty-three".