982816825261 has 2 divisors, whose sum is σ = 982816825262. Its totient is φ = 982816825260.

The previous prime is 982816825201. The next prime is 982816825279. The reversal of 982816825261 is 162528618289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577799137161 + 405017688100 = 760131^2 + 636410^2 .

It is a cyclic number.

It is not a de Polignac number, because 982816825261 - 2²¹ = 982814728109 is a prime.

It is a super-2 number, since 2×982816825261² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 982816825196 and 982816825205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982816825201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491408412630 + 491408412631.

It is an arithmetic number, because the mean of its divisors is an integer number (491408412631).

Almost surely, 2^982816825261 is an apocalyptic number.

It is an amenable number.

982816825261 is a deficient number, since it is larger than the sum of its proper divisors (1).

982816825261 is an equidigital number, since it uses as much as digits as its factorization.

982816825261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6635520, while the sum is 58.

The spelling of 982816825261 in words is "nine hundred eighty-two billion, eight hundred sixteen million, eight hundred twenty-five thousand, two hundred sixty-one".