6495252761 has 2 divisors, whose sum is σ = 6495252762. Its totient is φ = 6495252760.

The previous prime is 6495252737. The next prime is 6495252833. The reversal of 6495252761 is 1672525946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6266305600 + 228947161 = 79160^2 + 15131^2 .

It is a cyclic number.

It is not a de Polignac number, because 6495252761 - 2⁶ = 6495252697 is a prime.

It is not a weakly prime, because it can be changed into another prime (6495258761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247626380 + 3247626381.

It is an arithmetic number, because the mean of its divisors is an integer number (3247626381).

Almost surely, 2^6495252761 is an apocalyptic number.

It is an amenable number.

6495252761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6495252761 is an equidigital number, since it uses as much as digits as its factorization.

6495252761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The square root of 6495252761 is about 80593.1309790109. The cubic root of 6495252761 is about 1865.8011312812.

The spelling of 6495252761 in words is "six billion, four hundred ninety-five million, two hundred fifty-two thousand, seven hundred sixty-one".