79873585605823 has 2 divisors, whose sum is σ = 79873585605824. Its totient is φ = 79873585605822.

The previous prime is 79873585605787. The next prime is 79873585605889. The reversal of 79873585605823 is 32850658537897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79873585605823 - 2⁴¹ = 77674562350271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79873585605823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79873585605223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39936792802911 + 39936792802912.

It is an arithmetic number, because the mean of its divisors is an integer number (39936792802912).

Almost surely, 2^{79873585605823} is an apocalyptic number.

79873585605823 is a deficient number, since it is larger than the sum of its proper divisors (1).

79873585605823 is an equidigital number, since it uses as much as digits as its factorization.

79873585605823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192000, while the sum is 76.

The spelling of 79873585605823 in words is "seventy-nine trillion, eight hundred seventy-three billion, five hundred eighty-five million, six hundred five thousand, eight hundred twenty-three".