6463771268 has 12 divisors (see below), whose sum is σ = 11312169792. Its totient is φ = 3231722760.

The previous prime is 6463771267. The next prime is 6463771289. The reversal of 6463771268 is 8621773646.

It is not an unprimeable number, because it can be changed into a prime (6463771267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113321 + ... + 160527.

It is an arithmetic number, because the mean of its divisors is an integer number (942680816).

Almost surely, 2^6463771268 is an apocalyptic number.

It is an amenable number.

6463771268 is a deficient number, since it is larger than the sum of its proper divisors (4848398524).

6463771268 is a wasteful number, since it uses less digits than its factorization.

6463771268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81442 (or 81440 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The square root of 6463771268 is about 80397.5824760919. The cubic root of 6463771268 is about 1862.7818307687.

The spelling of 6463771268 in words is "six billion, four hundred sixty-three million, seven hundred seventy-one thousand, two hundred sixty-eight".