6315430445509 has 2 divisors, whose sum is σ = 6315430445510. Its totient is φ = 6315430445508.

The previous prime is 6315430445507. The next prime is 6315430445593. The reversal of 6315430445509 is 9055440345136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5086026269284 + 1229404176225 = 2255222^2 + 1108785^2 .

It is a cyclic number.

It is not a de Polignac number, because 6315430445509 - 2¹ = 6315430445507 is a prime.

Together with 6315430445507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6315430445507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157715222754 + 3157715222755.

It is an arithmetic number, because the mean of its divisors is an integer number (3157715222755).

Almost surely, 2^{6315430445509} is an apocalyptic number.

It is an amenable number.

6315430445509 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315430445509 is an equidigital number, since it uses as much as digits as its factorization.

6315430445509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 6315430445509 in words is "six trillion, three hundred fifteen billion, four hundred thirty million, four hundred forty-five thousand, five hundred nine".