6147511564609 has 2 divisors, whose sum is σ = 6147511564610. Its totient is φ = 6147511564608.

The previous prime is 6147511564549. The next prime is 6147511564631. The reversal of 6147511564609 is 9064651157416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4389360206400 + 1758151358209 = 2095080^2 + 1325953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6147511564609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6147511564609.

It is not a weakly prime, because it can be changed into another prime (6147511568609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3073755782304 + 3073755782305.

It is an arithmetic number, because the mean of its divisors is an integer number (3073755782305).

Almost surely, 2^{6147511564609} is an apocalyptic number.

It is an amenable number.

6147511564609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6147511564609 is an equidigital number, since it uses as much as digits as its factorization.

6147511564609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 6147511564609 in words is "six trillion, one hundred forty-seven billion, five hundred eleven million, five hundred sixty-four thousand, six hundred nine".