78530342224693 has 2 divisors, whose sum is σ = 78530342224694. Its totient is φ = 78530342224692.

The previous prime is 78530342224643. The next prime is 78530342224717. The reversal of 78530342224693 is 39642224303587.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78194705071729 + 335637152964 = 8842777^2 + 579342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78530342224693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78530342224613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39265171112346 + 39265171112347.

It is an arithmetic number, because the mean of its divisors is an integer number (39265171112347).

Almost surely, 2^{78530342224693} is an apocalyptic number.

It is an amenable number.

78530342224693 is a deficient number, since it is larger than the sum of its proper divisors (1).

78530342224693 is an equidigital number, since it uses as much as digits as its factorization.

78530342224693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 58.

The spelling of 78530342224693 in words is "seventy-eight trillion, five hundred thirty billion, three hundred forty-two million, two hundred twenty-four thousand, six hundred ninety-three".