6497544008 has 12 divisors (see below), whose sum is σ = 12183322515. Its totient is φ = 3248658008.

The previous prime is 6497543971. The next prime is 6497544013. The reversal of 6497544008 is 8004457946.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 3248772004 + 3248772004 = 56998^2 + 56998^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=56998.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 213743 + ... + 242241.

Almost surely, 2^6497544008 is an apocalyptic number.

It is an amenable number.

6497544008 is a deficient number, since it is larger than the sum of its proper divisors (5685778507).

6497544008 is an frugal number, since it uses more digits than its factorization.

6497544008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57004 (or 28501 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 6497544008 is about 80607.3446281417. The cubic root of 6497544008 is about 1866.0204970662.

The spelling of 6497544008 in words is "six billion, four hundred ninety-seven million, five hundred forty-four thousand, eight".