8786724706081 has 9 divisors (see below), whose sum is σ = 10221316142481. Its totient is φ = 7531460534052.

The previous prime is 8786724706013. The next prime is 8786724706087. The reversal of 8786724706081 is 1806074276878.

The square root of 8786724706081 is 2964241.

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

It is not a de Polignac number, because 8786724706081 - 2¹³ = 8786724697889 is a prime.

It is a super-2 number, since 2×8786724706081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8786724706087) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20537956 + ... + 20961418.

It is an arithmetic number, because the mean of its divisors is an integer number (1135701793609).

Almost surely, 2^{8786724706081} is an apocalyptic number.

8786724706081 is the 2964241-st square number.

8786724706081 is the 1482121-st centered octagonal number.

It is an amenable number.

8786724706081 is a deficient number, since it is larger than the sum of its proper divisors (1434591436400).

8786724706081 is an frugal number, since it uses more digits than its factorization.

8786724706081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846940 (or 423470 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 64.

Multiplying 8786724706081 by its sum of digits (64), we get a square (562350381189184 = 23713928²).

The spelling of 8786724706081 in words is "eight trillion, seven hundred eighty-six billion, seven hundred twenty-four million, seven hundred six thousand, eighty-one".