79863485673 has 4 divisors (see below), whose sum is σ = 106484647568. Its totient is φ = 53242323780.

The previous prime is 79863485651. The next prime is 79863485753. The reversal of 79863485673 is 37658436897.

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.

It is not a de Polignac number, because 79863485673 - 2²⁵ = 79829931241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79863485633) 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, 13310580943 + ... + 13310580948.

It is an arithmetic number, because the mean of its divisors is an integer number (26621161892).

Almost surely, 2^79863485673 is an apocalyptic number.

It is an amenable number.

79863485673 is a deficient number, since it is larger than the sum of its proper divisors (26621161895).

79863485673 is a wasteful number, since it uses less digits than its factorization.

79863485673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26621161894.

The product of its digits is 182891520, while the sum is 66.

The spelling of 79863485673 in words is "seventy-nine billion, eight hundred sixty-three million, four hundred eighty-five thousand, six hundred seventy-three".