6500000649 has 8 divisors (see below), whose sum is σ = 8675061472. Its totient is φ = 4329136800.

The previous prime is 6500000593. The next prime is 6500000657. The reversal of 6500000649 is 9460000056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6500000649 - 2⁸ = 6500000393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6500000669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045627 + ... + 1051824.

It is an arithmetic number, because the mean of its divisors is an integer number (1084382684).

Almost surely, 2^6500000649 is an apocalyptic number.

It is an amenable number.

6500000649 is a deficient number, since it is larger than the sum of its proper divisors (2175060823).

6500000649 is a wasteful number, since it uses less digits than its factorization.

6500000649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098487.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6500000649 is about 80622.5815079125. The cubic root of 6500000649 is about 1866.2556405214.

The spelling of 6500000649 in words is "six billion, five hundred million, six hundred forty-nine", and thus it is an aban number.