18423719105796 has 81 divisors (see below), whose sum is σ = 46683112619871. Its totient is φ = 6126499991808.

The previous prime is 18423719105789. The next prime is 18423719105839. The reversal of 18423719105796 is 69750191732481.

The square root of 18423719105796 is 4292286.

It is a perfect power (a square), and thus also a powerful number.

18423719105796 is a `hidden beast` number, since 1 + 8 + 4 + 2 + 37 + 19 + 10 + 579 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6040358105796 + 12383361000000 = 2457714^2 + 3519000^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18259384140 + ... + 18259385148.

It is a 1-persistent number, because it is pandigital, but 2⋅18423719105796 = 36847438211592 is not.

Almost surely, 2^{18423719105796} is an apocalyptic number.

18423719105796 is the 4292286-th square number.

It is an amenable number.

18423719105796 is an abundant number, since it is smaller than the sum of its proper divisors (28259393514075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18423719105796 is an frugal number, since it uses more digits than its factorization.

18423719105796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 18423719105796 in words is "eighteen trillion, four hundred twenty-three billion, seven hundred nineteen million, one hundred five thousand, seven hundred ninety-six".