6315686979 has 12 divisors (see below), whose sum is σ = 9795759624. Its totient is φ = 3608963904.

The previous prime is 6315686957. The next prime is 6315686987. The reversal of 6315686979 is 9796865136.

It is not a de Polignac number, because 6315686979 - 2⁷ = 6315686851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6315686939) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21481782 + ... + 21482075.

It is an arithmetic number, because the mean of its divisors is an integer number (816313302).

Almost surely, 2^6315686979 is an apocalyptic number.

6315686979 is a deficient number, since it is larger than the sum of its proper divisors (3480072645).

6315686979 is a wasteful number, since it uses less digits than its factorization.

6315686979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42963874 (or 42963867 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The square root of 6315686979 is about 79471.2965730395. The cubic root of 6315686979 is about 1848.4464170596.

The spelling of 6315686979 in words is "six billion, three hundred fifteen million, six hundred eighty-six thousand, nine hundred seventy-nine".