9862822661 has 2 divisors, whose sum is σ = 9862822662. Its totient is φ = 9862822660.

The previous prime is 9862822649. The next prime is 9862822681. The reversal of 9862822661 is 1662282689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9703432036 + 159390625 = 98506^2 + 12625^2 .

It is a cyclic number.

It is not a de Polignac number, because 9862822661 - 2¹⁰ = 9862821637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9862822681) 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, 4931411330 + 4931411331.

It is an arithmetic number, because the mean of its divisors is an integer number (4931411331).

Almost surely, 2^9862822661 is an apocalyptic number.

It is an amenable number.

9862822661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9862822661 is an equidigital number, since it uses as much as digits as its factorization.

9862822661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 50.

The square root of 9862822661 is about 99311.7448290986. The cubic root of 9862822661 is about 2144.5379770413.

The spelling of 9862822661 in words is "nine billion, eight hundred sixty-two million, eight hundred twenty-two thousand, six hundred sixty-one".