8648685081 has 6 divisors (see below), whose sum is σ = 12492545130. Its totient is φ = 5765790048.

The previous prime is 8648685053. The next prime is 8648685127. The reversal of 8648685081 is 1805868468.

8648685081 is a `hidden beast` number, since 8 + 6 + 486 + 85 + 0 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8178489225 + 470195856 = 90435^2 + 21684^2 .

It is not a de Polignac number, because 8648685081 - 2⁵ = 8648685049 is a prime.

It is a super-2 number, since 2×8648685081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8648685041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 480482496 + ... + 480482513.

It is an arithmetic number, because the mean of its divisors is an integer number (2082090855).

Almost surely, 2^8648685081 is an apocalyptic number.

It is an amenable number.

8648685081 is a deficient number, since it is larger than the sum of its proper divisors (3843860049).

8648685081 is a wasteful number, since it uses less digits than its factorization.

8648685081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960965015 (or 960965012 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The square root of 8648685081 is about 92998.3068716845. The cubic root of 8648685081 is about 2052.6584649993.

The spelling of 8648685081 in words is "eight billion, six hundred forty-eight million, six hundred eighty-five thousand, eighty-one".