6497125327285 has 4 divisors (see below), whose sum is σ = 7796550392748. Its totient is φ = 5197700261824.

The previous prime is 6497125327169. The next prime is 6497125327289. The reversal of 6497125327285 is 5827235217946.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4400487934756 + 2096637392529 = 2097734^2 + 1447977^2 .

It is a cyclic number.

It is not a de Polignac number, because 6497125327285 - 2¹⁷ = 6497125196213 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 (6497125327289) 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, 649712532724 + ... + 649712532733.

It is an arithmetic number, because the mean of its divisors is an integer number (1949137598187).

Almost surely, 2^{6497125327285} is an apocalyptic number.

It is an amenable number.

6497125327285 is a deficient number, since it is larger than the sum of its proper divisors (1299425065463).

6497125327285 is a wasteful number, since it uses less digits than its factorization.

6497125327285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299425065462.

The product of its digits is 50803200, while the sum is 61.

The spelling of 6497125327285 in words is "six trillion, four hundred ninety-seven billion, one hundred twenty-five million, three hundred twenty-seven thousand, two hundred eighty-five".