6495871137 has 8 divisors (see below), whose sum is σ = 9898470336. Its totient is φ = 3711926352.

The previous prime is 6495871127. The next prime is 6495871181. The reversal of 6495871137 is 7311785946.

It is a happy number.

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

It is not a de Polignac number, because 6495871137 - 2⁷ = 6495871009 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6495871137.

It is not an unprimeable number, because it can be changed into a prime (6495871127) 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 7 ways as a sum of consecutive naturals, for example, 154663578 + ... + 154663619.

It is an arithmetic number, because the mean of its divisors is an integer number (1237308792).

Almost surely, 2^6495871137 is an apocalyptic number.

It is an amenable number.

6495871137 is a deficient number, since it is larger than the sum of its proper divisors (3402599199).

6495871137 is a wasteful number, since it uses less digits than its factorization.

6495871137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309327207.

The product of its digits is 1270080, while the sum is 51.

The square root of 6495871137 is about 80596.9672940614. The cubic root of 6495871137 is about 1865.8603401665.

The spelling of 6495871137 in words is "six billion, four hundred ninety-five million, eight hundred seventy-one thousand, one hundred thirty-seven".