6317923561 has 2 divisors, whose sum is σ = 6317923562. Its totient is φ = 6317923560.

The previous prime is 6317923559. The next prime is 6317923583. The reversal of 6317923561 is 1653297136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5040290025 + 1277633536 = 70995^2 + 35744^2 .

It is a cyclic number.

It is not a de Polignac number, because 6317923561 - 2¹ = 6317923559 is a prime.

Together with 6317923559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6317923501) 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 as a sum of consecutive naturals, namely, 3158961780 + 3158961781.

It is an arithmetic number, because the mean of its divisors is an integer number (3158961781).

Almost surely, 2^6317923561 is an apocalyptic number.

It is an amenable number.

6317923561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6317923561 is an equidigital number, since it uses as much as digits as its factorization.

6317923561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 6317923561 is about 79485.3669614729. The cubic root of 6317923561 is about 1848.6645888424.

The spelling of 6317923561 in words is "six billion, three hundred seventeen million, nine hundred twenty-three thousand, five hundred sixty-one".