7906785168413 has 2 divisors, whose sum is σ = 7906785168414. Its totient is φ = 7906785168412.

The previous prime is 7906785168397. The next prime is 7906785168433. The reversal of 7906785168413 is 3148615876097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4029245260804 + 3877539907609 = 2007298^2 + 1969147^2 .

It is a cyclic number.

It is not a de Polignac number, because 7906785168413 - 2⁴ = 7906785168397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7906785168413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7906785168433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3953392584206 + 3953392584207.

It is an arithmetic number, because the mean of its divisors is an integer number (3953392584207).

Almost surely, 2^{7906785168413} is an apocalyptic number.

It is an amenable number.

7906785168413 is a deficient number, since it is larger than the sum of its proper divisors (1).

7906785168413 is an equidigital number, since it uses as much as digits as its factorization.

7906785168413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 7906785168413 in words is "seven trillion, nine hundred six billion, seven hundred eighty-five million, one hundred sixty-eight thousand, four hundred thirteen".