6544842463 has 2 divisors, whose sum is σ = 6544842464. Its totient is φ = 6544842462.

The previous prime is 6544842457. The next prime is 6544842509. The reversal of 6544842463 is 3642484456.

It is an a-pointer prime, because the next prime (6544842509) can be obtained adding 6544842463 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6544842463 - 2²¹ = 6542745311 is a prime.

It is a congruent number.

It is a weakly prime.

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, 3272421231 + 3272421232.

It is an arithmetic number, because the mean of its divisors is an integer number (3272421232).

Almost surely, 2^6544842463 is an apocalyptic number.

6544842463 is a deficient number, since it is larger than the sum of its proper divisors (1).

6544842463 is an equidigital number, since it uses as much as digits as its factorization.

6544842463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 46.

The square root of 6544842463 is about 80900.2006363396. The cubic root of 6544842463 is about 1870.5374133855.

The spelling of 6544842463 in words is "six billion, five hundred forty-four million, eight hundred forty-two thousand, four hundred sixty-three".