8745682561 has 16 divisors (see below), whose sum is σ = 10916425728. Its totient is φ = 6806869200.

The previous prime is 8745682507. The next prime is 8745682567. The reversal of 8745682561 is 1652865478.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8745682561 - 2⁷ = 8745682433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8745682499 and 8745682508.

It is not an unprimeable number, because it can be changed into a prime (8745682567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646 + ... + 132256.

It is an arithmetic number, because the mean of its divisors is an integer number (682276608).

Almost surely, 2^8745682561 is an apocalyptic number.

It is an amenable number.

8745682561 is a deficient number, since it is larger than the sum of its proper divisors (2170743167).

8745682561 is a wasteful number, since it uses less digits than its factorization.

8745682561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132492.

The product of its digits is 3225600, while the sum is 52.

The square root of 8745682561 is about 93518.3541397089. The cubic root of 8745682561 is about 2060.3036722808.

The spelling of 8745682561 in words is "eight billion, seven hundred forty-five million, six hundred eighty-two thousand, five hundred sixty-one".