8939896681156 has 81 divisors (see below), whose sum is σ = 18657363368007. Its totient is φ = 3737218302720.

The previous prime is 8939896681129. The next prime is 8939896681159. The reversal of 8939896681156 is 6511866989398.

The square root of 8939896681156 is 2989966.

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

It can be written as a sum of positive squares in 4 ways, for example, as 60927023556 + 8878969657600 = 246834^2 + 2979760^2 .

It is a super-3 number, since 3×8939896681156³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8939896681159) 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, 1716237880 + ... + 1716243088.

Almost surely, 2^{8939896681156} is an apocalyptic number.

8939896681156 is the 2989966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8939896681156

8939896681156 is an abundant number, since it is smaller than the sum of its proper divisors (9717466686851).

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

8939896681156 is an frugal number, since it uses more digits than its factorization.

8939896681156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518 (or 5259 counting only the distinct ones).

The product of its digits is 1209323520, while the sum is 79.

The spelling of 8939896681156 in words is "eight trillion, nine hundred thirty-nine billion, eight hundred ninety-six million, six hundred eighty-one thousand, one hundred fifty-six".