985801570841 has 2 divisors, whose sum is σ = 985801570842. Its totient is φ = 985801570840.

The previous prime is 985801570823. The next prime is 985801570907. The reversal of 985801570841 is 148075108589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846944727616 + 138856843225 = 920296^2 + 372635^2 .

It is a cyclic number.

It is not a de Polignac number, because 985801570841 - 2¹⁰ = 985801569817 is a prime.

It is not a weakly prime, because it can be changed into another prime (985801575841) 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, 492900785420 + 492900785421.

It is an arithmetic number, because the mean of its divisors is an integer number (492900785421).

Almost surely, 2^985801570841 is an apocalyptic number.

It is an amenable number.

985801570841 is a deficient number, since it is larger than the sum of its proper divisors (1).

985801570841 is an equidigital number, since it uses as much as digits as its factorization.

985801570841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3225600, while the sum is 56.

The spelling of 985801570841 in words is "nine hundred eighty-five billion, eight hundred one million, five hundred seventy thousand, eight hundred forty-one".