79117185241 has 4 divisors (see below), whose sum is σ = 83771137332. Its totient is φ = 74463233152.

The previous prime is 79117185227. The next prime is 79117185269. The reversal of 79117185241 is 14258171197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14258171197 = 19 ⋅750430063.

It can be written as a sum of positive squares in 2 ways, for example, as 23702142025 + 55415043216 = 153955^2 + 235404^2 .

It is a cyclic number.

It is not a de Polignac number, because 79117185241 - 2¹⁵ = 79117152473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79117185191 and 79117185200.

It is not an unprimeable number, because it can be changed into a prime (79117185221) 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 3 ways as a sum of consecutive naturals, for example, 2326976020 + ... + 2326976053.

It is an arithmetic number, because the mean of its divisors is an integer number (20942784333).

Almost surely, 2^79117185241 is an apocalyptic number.

It is an amenable number.

79117185241 is a deficient number, since it is larger than the sum of its proper divisors (4653952091).

79117185241 is a wasteful number, since it uses less digits than its factorization.

79117185241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653952090.

The product of its digits is 141120, while the sum is 46.

The spelling of 79117185241 in words is "seventy-nine billion, one hundred seventeen million, one hundred eighty-five thousand, two hundred forty-one".