6378895313 has 24 divisors (see below), whose sum is σ = 7509738600. Its totient is φ = 5402073600.

The previous prime is 6378895291. The next prime is 6378895343. The reversal of 6378895313 is 3135988736.

6378895313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6385729 + 6372509584 = 2527^2 + 79828^2 .

It is not a de Polignac number, because 6378895313 - 2¹² = 6378891217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6378895343) 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 in 23 ways as a sum of consecutive naturals, for example, 1930763 + ... + 1934063.

It is an arithmetic number, because the mean of its divisors is an integer number (312905775).

Almost surely, 2^6378895313 is an apocalyptic number.

It is an amenable number.

6378895313 is a deficient number, since it is larger than the sum of its proper divisors (1130843287).

6378895313 is a wasteful number, since it uses less digits than its factorization.

6378895313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777 (or 3770 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 6378895313 is about 79867.9867844432. The cubic root of 6378895313 is about 1854.5924677306.

The spelling of 6378895313 in words is "six billion, three hundred seventy-eight million, eight hundred ninety-five thousand, three hundred thirteen".