8649065841 has 16 divisors (see below), whose sum is σ = 12421491264. Its totient is φ = 5321507904.

The previous prime is 8649065827. The next prime is 8649065849. The reversal of 8649065841 is 1485609468.

It is not a de Polignac number, because 8649065841 - 2¹¹ = 8649063793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8649065849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228810 + ... + 263916.

It is an arithmetic number, because the mean of its divisors is an integer number (776343204).

Almost surely, 2^8649065841 is an apocalyptic number.

It is an amenable number.

8649065841 is a deficient number, since it is larger than the sum of its proper divisors (3772425423).

8649065841 is a wasteful number, since it uses less digits than its factorization.

8649065841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41440.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 8649065841 is about 93000.3539831973. The cubic root of 8649065841 is about 2052.6885874500.

The spelling of 8649065841 in words is "eight billion, six hundred forty-nine million, sixty-five thousand, eight hundred forty-one".