8645545776 has 80 divisors (see below), whose sum is σ = 25606805504. Its totient is φ = 2462234112.

The previous prime is 8645545759. The next prime is 8645545787. The reversal of 8645545776 is 6775455468.

It is a super-2 number, since 2×8645545776² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64065 + ... + 146271.

Almost surely, 2^8645545776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8645545776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12803402752).

8645545776 is an abundant number, since it is smaller than the sum of its proper divisors (16961259728).

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

8645545776 is a wasteful number, since it uses less digits than its factorization.

8645545776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82538 (or 82532 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 57.

The square root of 8645545776 is about 92981.4270486316. The cubic root of 8645545776 is about 2052.4100765352.

It can be divided in two parts, 86455 and 45776, that added together give a palindrome (132231).

The spelling of 8645545776 in words is "eight billion, six hundred forty-five million, five hundred forty-five thousand, seven hundred seventy-six".