79392487171 has 4 divisors (see below), whose sum is σ = 79621284312. Its totient is φ = 79163690032.

The previous prime is 79392487169. The next prime is 79392487199. The reversal of 79392487171 is 17178429397.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79392487171 - 2¹ = 79392487169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79392487121) 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, 114398050 + ... + 114398743.

It is an arithmetic number, because the mean of its divisors is an integer number (19905321078).

Almost surely, 2^79392487171 is an apocalyptic number.

79392487171 is a deficient number, since it is larger than the sum of its proper divisors (228797141).

79392487171 is a wasteful number, since it uses less digits than its factorization.

79392487171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228797140.

The product of its digits is 5334336, while the sum is 58.

The spelling of 79392487171 in words is "seventy-nine billion, three hundred ninety-two million, four hundred eighty-seven thousand, one hundred seventy-one".