6496539913 has 4 divisors (see below), whose sum is σ = 6654992148. Its totient is φ = 6338087680.

The previous prime is 6496539859. The next prime is 6496539937. The reversal of 6496539913 is 3199356946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3199356946 = 2 ⋅1599678473.

It can be written as a sum of positive squares in 2 ways, for example, as 3051789049 + 3444750864 = 55243^2 + 58692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6496539913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6496539113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79226056 + ... + 79226137.

It is an arithmetic number, because the mean of its divisors is an integer number (1663748037).

Almost surely, 2^6496539913 is an apocalyptic number.

It is an amenable number.

6496539913 is a deficient number, since it is larger than the sum of its proper divisors (158452235).

6496539913 is a wasteful number, since it uses less digits than its factorization.

6496539913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158452234.

The product of its digits is 4723920, while the sum is 55.

The square root of 6496539913 is about 80601.1160778807. The cubic root of 6496539913 is about 1865.9243705723.

The spelling of 6496539913 in words is "six billion, four hundred ninety-six million, five hundred thirty-nine thousand, nine hundred thirteen".