6315656849 has 2 divisors, whose sum is σ = 6315656850. Its totient is φ = 6315656848.

The previous prime is 6315656839. The next prime is 6315656911. The reversal of 6315656849 is 9486565136.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5445406849 + 870250000 = 73793^2 + 29500^2 .

It is a cyclic number.

It is not a de Polignac number, because 6315656849 - 2²⁰ = 6314608273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6315656849.

It is not a weakly prime, because it can be changed into another prime (6315656839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157828424 + 3157828425.

It is an arithmetic number, because the mean of its divisors is an integer number (3157828425).

Almost surely, 2^6315656849 is an apocalyptic number.

It is an amenable number.

6315656849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315656849 is an equidigital number, since it uses as much as digits as its factorization.

6315656849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 53.

The square root of 6315656849 is about 79471.1070075156. The cubic root of 6315656849 is about 1848.4434776180.

The spelling of 6315656849 in words is "six billion, three hundred fifteen million, six hundred fifty-six thousand, eight hundred forty-nine".