8423844492996 has 81 divisors (see below), whose sum is σ = 21705331719981. Its totient is φ = 2754666162144.

The previous prime is 8423844492991. The next prime is 8423844492997. The reversal of 8423844492996 is 6992944483248.

The square root of 8423844492996 is 2902386.

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

8423844492996 is a `hidden beast` number, since 8 + 4 + 2 + 3 + 8 + 44 + 492 + 9 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6072725204100 + 2351119288896 = 2464290^2 + 1533336^2 .

It is a super-2 number, since 2×8423844492996² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8423844492991) by changing a digit.

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, 922954185 + ... + 922963311.

Almost surely, 2^{8423844492996} is an apocalyptic number.

8423844492996 is the 2902386-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8423844492996

8423844492996 is an abundant number, since it is smaller than the sum of its proper divisors (13281487226985).

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

8423844492996 is an frugal number, since it uses more digits than its factorization.

8423844492996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18370 (or 9185 counting only the distinct ones).

The product of its digits is 859963392, while the sum is 72.

The spelling of 8423844492996 in words is "eight trillion, four hundred twenty-three billion, eight hundred forty-four million, four hundred ninety-two thousand, nine hundred ninety-six".