79112170085 has 16 divisors (see below), whose sum is σ = 105762691440. Its totient is φ = 56406766080.

The previous prime is 79112170079. The next prime is 79112170103. The reversal of 79112170085 is 58007121197.

It can be written as a sum of positive squares in 8 ways, for example, as 38167684 + 79074002401 = 6178^2 + 281201^2 .

It is not a de Polignac number, because 79112170085 - 2⁴ = 79112170069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20982776 + ... + 20986545.

It is an arithmetic number, because the mean of its divisors is an integer number (6610168215).

Almost surely, 2^79112170085 is an apocalyptic number.

It is an amenable number.

79112170085 is a deficient number, since it is larger than the sum of its proper divisors (26650521355).

79112170085 is a wasteful number, since it uses less digits than its factorization.

79112170085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41969368.

The product of its (nonzero) digits is 35280, while the sum is 41.

The spelling of 79112170085 in words is "seventy-nine billion, one hundred twelve million, one hundred seventy thousand, eighty-five".