79320304309 has 4 divisors (see below), whose sum is σ = 82769013216. Its totient is φ = 75871595404.

The previous prime is 79320304307. The next prime is 79320304319. The reversal of 79320304309 is 90340302397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90340302397 = 73 ⋅1237538389.

It is a cyclic number.

It is not a de Polignac number, because 79320304309 - 2¹ = 79320304307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79320304307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724354419 + ... + 1724354464.

It is an arithmetic number, because the mean of its divisors is an integer number (20692253304).

Almost surely, 2^79320304309 is an apocalyptic number.

It is an amenable number.

79320304309 is a deficient number, since it is larger than the sum of its proper divisors (3448708907).

79320304309 is a wasteful number, since it uses less digits than its factorization.

79320304309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448708906.

The product of its (nonzero) digits is 122472, while the sum is 40.

The spelling of 79320304309 in words is "seventy-nine billion, three hundred twenty million, three hundred four thousand, three hundred nine".