985170000679 has 2 divisors, whose sum is σ = 985170000680. Its totient is φ = 985170000678.

The previous prime is 985170000667. The next prime is 985170000697. The reversal of 985170000679 is 976000071589.

It is a happy number.

Together with next prime (985170000697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985170000679 - 2²¹ = 985167903527 is a prime.

It is a super-2 number, since 2×985170000679² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985170000629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492585000339 + 492585000340.

It is an arithmetic number, because the mean of its divisors is an integer number (492585000340).

Almost surely, 2^985170000679 is an apocalyptic number.

985170000679 is a deficient number, since it is larger than the sum of its proper divisors (1).

985170000679 is an equidigital number, since it uses as much as digits as its factorization.

985170000679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 985170000679 in words is "nine hundred eighty-five billion, one hundred seventy million, six hundred seventy-nine", and thus it is an aban number.