828273728281 has 2 divisors, whose sum is σ = 828273728282. Its totient is φ = 828273728280.

The previous prime is 828273728273. The next prime is 828273728287. The reversal of 828273728281 is 182827372828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617574367881 + 210699360400 = 785859^2 + 459020^2 .

It is a cyclic number.

It is not a de Polignac number, because 828273728281 - 2³ = 828273728273 is a prime.

It is a super-2 number, since 2×828273728281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (828273728287) 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, 414136864140 + 414136864141.

It is an arithmetic number, because the mean of its divisors is an integer number (414136864141).

Almost surely, 2^828273728281 is an apocalyptic number.

It is an amenable number.

828273728281 is a deficient number, since it is larger than the sum of its proper divisors (1).

828273728281 is an equidigital number, since it uses as much as digits as its factorization.

828273728281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9633792, while the sum is 58.

The spelling of 828273728281 in words is "eight hundred twenty-eight billion, two hundred seventy-three million, seven hundred twenty-eight thousand, two hundred eighty-one".