828798892217 has 2 divisors, whose sum is σ = 828798892218. Its totient is φ = 828798892216.

The previous prime is 828798892199. The next prime is 828798892253. The reversal of 828798892217 is 712298897828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744266818681 + 84532073536 = 862709^2 + 290744^2 .

It is a cyclic number.

It is not a de Polignac number, because 828798892217 - 2¹⁸ = 828798630073 is a prime.

It is not a weakly prime, because it can be changed into another prime (828798892417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414399446108 + 414399446109.

It is an arithmetic number, because the mean of its divisors is an integer number (414399446109).

Almost surely, 2^828798892217 is an apocalyptic number.

It is an amenable number.

828798892217 is a deficient number, since it is larger than the sum of its proper divisors (1).

828798892217 is an equidigital number, since it uses as much as digits as its factorization.

828798892217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 130056192, while the sum is 71.

The spelling of 828798892217 in words is "eight hundred twenty-eight billion, seven hundred ninety-eight million, eight hundred ninety-two thousand, two hundred seventeen".