79173028089 has 6 divisors (see below), whose sum is σ = 114361040586. Its totient is φ = 52782018720.

The previous prime is 79173028037. The next prime is 79173028157. The reversal of 79173028089 is 98082037197.

It can be written as a sum of positive squares in only one way, i.e., 59796388089 + 19376640000 = 244533^2 + 139200^2 .

It is not a de Polignac number, because 79173028089 - 2¹¹ = 79173026041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79173028019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4398501552 + ... + 4398501569.

It is an arithmetic number, because the mean of its divisors is an integer number (19060173431).

Almost surely, 2^79173028089 is an apocalyptic number.

It is an amenable number.

79173028089 is a deficient number, since it is larger than the sum of its proper divisors (35188012497).

79173028089 is a wasteful number, since it uses less digits than its factorization.

79173028089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797003127 (or 8797003124 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 79173028089 in words is "seventy-nine billion, one hundred seventy-three million, twenty-eight thousand, eighty-nine".