6486542765441 has 2 divisors, whose sum is σ = 6486542765442. Its totient is φ = 6486542765440.

The previous prime is 6486542765419. The next prime is 6486542765473. The reversal of 6486542765441 is 1445672456846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3329453453041 + 3157089312400 = 1824679^2 + 1776820^2 .

It is a cyclic number.

It is not a de Polignac number, because 6486542765441 - 2¹⁰ = 6486542764417 is a prime.

It is not a weakly prime, because it can be changed into another prime (6486542765401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243271382720 + 3243271382721.

It is an arithmetic number, because the mean of its divisors is an integer number (3243271382721).

Almost surely, 2^{6486542765441} is an apocalyptic number.

It is an amenable number.

6486542765441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6486542765441 is an equidigital number, since it uses as much as digits as its factorization.

6486542765441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 154828800, while the sum is 62.

The spelling of 6486542765441 in words is "six trillion, four hundred eighty-six billion, five hundred forty-two million, seven hundred sixty-five thousand, four hundred forty-one".