7130786515691 has 2 divisors, whose sum is σ = 7130786515692. Its totient is φ = 7130786515690.

The previous prime is 7130786515679. The next prime is 7130786515703. The reversal of 7130786515691 is 1965156870317.

It is a balanced prime because it is at equal distance from previous prime (7130786515679) and next prime (7130786515703).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7130786515691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7130786515691.

It is not a weakly prime, because it can be changed into another prime (7130786515621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565393257845 + 3565393257846.

It is an arithmetic number, because the mean of its divisors is an integer number (3565393257846).

Almost surely, 2^{7130786515691} is an apocalyptic number.

7130786515691 is a deficient number, since it is larger than the sum of its proper divisors (1).

7130786515691 is an equidigital number, since it uses as much as digits as its factorization.

7130786515691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 7130786515691 in words is "seven trillion, one hundred thirty billion, seven hundred eighty-six million, five hundred fifteen thousand, six hundred ninety-one".