79793314687 has 4 divisors (see below), whose sum is σ = 81739493136. Its totient is φ = 77847136240.

The previous prime is 79793314669. The next prime is 79793314693. The reversal of 79793314687 is 78641339797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78641339797 = 2411 ⋅32617727.

It is a de Polignac number, because none of the positive numbers 2^k-79793314687 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 (79793314087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973089163 + ... + 973089244.

It is an arithmetic number, because the mean of its divisors is an integer number (20434873284).

Almost surely, 2^79793314687 is an apocalyptic number.

79793314687 is a deficient number, since it is larger than the sum of its proper divisors (1946178449).

79793314687 is a wasteful number, since it uses less digits than its factorization.

79793314687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946178448.

The product of its digits is 48009024, while the sum is 64.

The spelling of 79793314687 in words is "seventy-nine billion, seven hundred ninety-three million, three hundred fourteen thousand, six hundred eighty-seven".