985861484168579 has 2 divisors, whose sum is σ = 985861484168580. Its totient is φ = 985861484168578.

The previous prime is 985861484168497. The next prime is 985861484168611. The reversal of 985861484168579 is 975861484168589.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985861484168579 - 2⁴⁰ = 984761972540803 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 985861484168494 and 985861484168503.

It is not a weakly prime, because it can be changed into another prime (985861484168279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492930742084289 + 492930742084290.

It is an arithmetic number, because the mean of its divisors is an integer number (492930742084290).

Almost surely, 2^{985861484168579} is an apocalyptic number.

985861484168579 is a deficient number, since it is larger than the sum of its proper divisors (1).

985861484168579 is an equidigital number, since it uses as much as digits as its factorization.

985861484168579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33443020800, while the sum is 89.

The spelling of 985861484168579 in words is "nine hundred eighty-five trillion, eight hundred sixty-one billion, four hundred eighty-four million, one hundred sixty-eight thousand, five hundred seventy-nine".