75430625717 has 2 divisors, whose sum is σ = 75430625718. Its totient is φ = 75430625716.

The previous prime is 75430625681. The next prime is 75430625723. The reversal of 75430625717 is 71752603457.

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., 47477795236 + 27952830481 = 217894^2 + 167191^2 .

It is an emirp because it is prime and its reverse (71752603457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75430625717 - 2¹⁰ = 75430624693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75430625117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37715312858 + 37715312859.

It is an arithmetic number, because the mean of its divisors is an integer number (37715312859).

Almost surely, 2^75430625717 is an apocalyptic number.

It is an amenable number.

75430625717 is a deficient number, since it is larger than the sum of its proper divisors (1).

75430625717 is an equidigital number, since it uses as much as digits as its factorization.

75430625717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 75430625717 in words is "seventy-five billion, four hundred thirty million, six hundred twenty-five thousand, seven hundred seventeen".