6463771289 has 2 divisors, whose sum is σ = 6463771290. Its totient is φ = 6463771288.

The previous prime is 6463771267. The next prime is 6463771361. The reversal of 6463771289 is 9821773646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5855310400 + 608460889 = 76520^2 + 24667^2 .

It is a cyclic number.

It is not a de Polignac number, because 6463771289 - 2²⁰ = 6462722713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6463771289.

It is not a weakly prime, because it can be changed into another prime (6463771889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3231885644 + 3231885645.

It is an arithmetic number, because the mean of its divisors is an integer number (3231885645).

Almost surely, 2^6463771289 is an apocalyptic number.

It is an amenable number.

6463771289 is a deficient number, since it is larger than the sum of its proper divisors (1).

6463771289 is an equidigital number, since it uses as much as digits as its factorization.

6463771289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 53.

The square root of 6463771289 is about 80397.5826066928. The cubic root of 6463771289 is about 1862.7818327861.

The spelling of 6463771289 in words is "six billion, four hundred sixty-three million, seven hundred seventy-one thousand, two hundred eighty-nine".