79421754103 has 4 divisors (see below), whose sum is σ = 79422693280. Its totient is φ = 79420814928.

The previous prime is 79421754059. The next prime is 79421754151. The reversal of 79421754103 is 30145712497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30145712497 = 4793 ⋅6289529.

It is a cyclic number.

It is not a de Polignac number, because 79421754103 - 2⁹ = 79421753591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79421754103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79421754173) 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, 328638 + ... + 516571.

It is an arithmetic number, because the mean of its divisors is an integer number (19855673320).

Almost surely, 2^79421754103 is an apocalyptic number.

79421754103 is a deficient number, since it is larger than the sum of its proper divisors (939177).

79421754103 is an equidigital number, since it uses as much as digits as its factorization.

79421754103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939176.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 79421754103 in words is "seventy-nine billion, four hundred twenty-one million, seven hundred fifty-four thousand, one hundred three".