999999000827 has 2 divisors, whose sum is σ = 999999000828. Its totient is φ = 999999000826.

The previous prime is 999999000817. The next prime is 999999000841. The reversal of 999999000827 is 728000999999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999999000827 - 2⁴ = 999999000811 is a prime.

It is not a weakly prime, because it can be changed into another prime (999999000817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999500413 + 499999500414.

It is an arithmetic number, because the mean of its divisors is an integer number (499999500414).

Almost surely, 2^999999000827 is an apocalyptic number.

999999000827 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999000827 is an equidigital number, since it uses as much as digits as its factorization.

999999000827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59521392, while the sum is 71.

The spelling of 999999000827 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, eight hundred twenty-seven", and thus it is an aban number.