6496539173 has 4 divisors (see below), whose sum is σ = 6497047200. Its totient is φ = 6496031148.

The previous prime is 6496539169. The next prime is 6496539187. The reversal of 6496539173 is 3719356946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3719356946 = 2 ⋅1859678473.

It is a cyclic number.

It is not a de Polignac number, because 6496539173 - 2² = 6496539169 is a prime.

It is a Duffinian number.

It is a congruent 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, 234323 + ... + 260576.

It is an arithmetic number, because the mean of its divisors is an integer number (1624261800).

Almost surely, 2^6496539173 is an apocalyptic number.

It is an amenable number.

6496539173 is a deficient number, since it is larger than the sum of its proper divisors (508027).

6496539173 is a wasteful number, since it uses less digits than its factorization.

6496539173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508026.

The product of its digits is 3674160, while the sum is 53.

The square root of 6496539173 is about 80601.1114873734. Note that the first 3 decimals coincide. The cubic root of 6496539173 is about 1865.9242997251.

The spelling of 6496539173 in words is "six billion, four hundred ninety-six million, five hundred thirty-nine thousand, one hundred seventy-three".