79579797271 has 4 divisors (see below), whose sum is σ = 85701320152. Its totient is φ = 73458274392.

The previous prime is 79579797233. The next prime is 79579797287. The reversal of 79579797271 is 17279797597.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17279797597 = 84523 ⋅204439.

It is a cyclic number.

It is not a de Polignac number, because 79579797271 - 2⁹ = 79579796759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79579797271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79579797221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3060761421 + ... + 3060761446.

It is an arithmetic number, because the mean of its divisors is an integer number (21425330038).

Almost surely, 2^79579797271 is an apocalyptic number.

79579797271 is a deficient number, since it is larger than the sum of its proper divisors (6121522881).

79579797271 is a wasteful number, since it uses less digits than its factorization.

79579797271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121522880.

The product of its digits is 122523030, while the sum is 70.

The spelling of 79579797271 in words is "seventy-nine billion, five hundred seventy-nine million, seven hundred ninety-seven thousand, two hundred seventy-one".