827868852589 has 2 divisors, whose sum is σ = 827868852590. Its totient is φ = 827868852588.

The previous prime is 827868852571. The next prime is 827868852593. The reversal of 827868852589 is 985258868728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656934565225 + 170934287364 = 810515^2 + 413442^2 .

It is a cyclic number.

It is not a de Polignac number, because 827868852589 - 2¹¹ = 827868850541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827868852529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413934426294 + 413934426295.

It is an arithmetic number, because the mean of its divisors is an integer number (413934426295).

Almost surely, 2^827868852589 is an apocalyptic number.

It is an amenable number.

827868852589 is a deficient number, since it is larger than the sum of its proper divisors (1).

827868852589 is an equidigital number, since it uses as much as digits as its factorization.

827868852589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1238630400, while the sum is 76.

The spelling of 827868852589 in words is "eight hundred twenty-seven billion, eight hundred sixty-eight million, eight hundred fifty-two thousand, five hundred eighty-nine".