79803547873 has 4 divisors (see below), whose sum is σ = 91204054720. Its totient is φ = 68403041028.

The previous prime is 79803547847. The next prime is 79803547883. The reversal of 79803547873 is 37874530897.

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 79803547873 - 2⁹ = 79803547361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79803547883) 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, 5700253413 + ... + 5700253426.

It is an arithmetic number, because the mean of its divisors is an integer number (22801013680).

Almost surely, 2^79803547873 is an apocalyptic number.

It is an amenable number.

79803547873 is a deficient number, since it is larger than the sum of its proper divisors (11400506847).

79803547873 is a wasteful number, since it uses less digits than its factorization.

79803547873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400506846.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 79803547873 in words is "seventy-nine billion, eight hundred three million, five hundred forty-seven thousand, eight hundred seventy-three".