6315886138 has 8 divisors (see below), whose sum is σ = 10031113332. Its totient is φ = 2972181696.

The previous prime is 6315886097. The next prime is 6315886151. The reversal of 6315886138 is 8316885136.

It can be written as a sum of positive squares in 2 ways, for example, as 6311190249 + 4695889 = 79443^2 + 2167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6315886091 and 6315886100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92880645 + ... + 92880712.

Almost surely, 2^6315886138 is an apocalyptic number.

6315886138 is a deficient number, since it is larger than the sum of its proper divisors (3715227194).

6315886138 is a wasteful number, since it uses less digits than its factorization.

6315886138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185761376.

The product of its digits is 829440, while the sum is 49.

The square root of 6315886138 is about 79472.5495878923. The cubic root of 6315886138 is about 1848.4658465041.

The spelling of 6315886138 in words is "six billion, three hundred fifteen million, eight hundred eighty-six thousand, one hundred thirty-eight".