79800085286 has 16 divisors (see below), whose sum is σ = 121260386400. Its totient is φ = 39383323200.

The previous prime is 79800085247. The next prime is 79800085289. The reversal of 79800085286 is 68258000897.

It is a super-2 number, since 2×79800085286² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79800085289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794111 + ... + 888938.

It is an arithmetic number, because the mean of its divisors is an integer number (7578774150).

Almost surely, 2^79800085286 is an apocalyptic number.

79800085286 is a deficient number, since it is larger than the sum of its proper divisors (41460301114).

79800085286 is a wasteful number, since it uses less digits than its factorization.

79800085286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683359.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 79800085286 in words is "seventy-nine billion, eight hundred million, eighty-five thousand, two hundred eighty-six".