6497316185813 has 2 divisors, whose sum is σ = 6497316185814. Its totient is φ = 6497316185812.

The previous prime is 6497316185807. The next prime is 6497316185819. The reversal of 6497316185813 is 3185816137946.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (6497316185807) and next prime (6497316185819).

It can be written as a sum of positive squares in only one way, i.e., 5025478930564 + 1471837255249 = 2241758^2 + 1213193^2 .

It is a cyclic number.

It is not a de Polignac number, because 6497316185813 - 2³² = 6493021218517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6497316185819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3248658092906 + 3248658092907.

It is an arithmetic number, because the mean of its divisors is an integer number (3248658092907).

Almost surely, 2^{6497316185813} is an apocalyptic number.

It is an amenable number.

6497316185813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6497316185813 is an equidigital number, since it uses as much as digits as its factorization.

6497316185813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 62.

The spelling of 6497316185813 in words is "six trillion, four hundred ninety-seven billion, three hundred sixteen million, one hundred eighty-five thousand, eight hundred thirteen".