8819973384336 has 135 divisors (see below), whose sum is σ = 24786934250169. Its totient is φ = 2927743491456.

The previous prime is 8819973384331. The next prime is 8819973384373. The reversal of 8819973384336 is 6334833799188.

The square root of 8819973384336 is 2969844.

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

8819973384336 is a `hidden beast` number, since 8 + 8 + 1 + 99 + 73 + 38 + 433 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2052400064400 + 6767573319936 = 1432620^2 + 2601456^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (8819973384331) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13506850186 + ... + 13506850838.

Almost surely, 2^{8819973384336} is an apocalyptic number.

8819973384336 is the 2969844-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8819973384336

8819973384336 is an abundant number, since it is smaller than the sum of its proper divisors (15966960865833).

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

8819973384336 is an frugal number, since it uses more digits than its factorization.

8819973384336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 1037 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 8819973384336 in words is "eight trillion, eight hundred nineteen billion, nine hundred seventy-three million, three hundred eighty-four thousand, three hundred thirty-six".