4591306391597 has 2 divisors, whose sum is σ = 4591306391598. Its totient is φ = 4591306391596.

The previous prime is 4591306391467. The next prime is 4591306391641. The reversal of 4591306391597 is 7951936031954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4394637202921 + 196669188676 = 2096339^2 + 443474^2 .

It is a cyclic number.

It is not a de Polignac number, because 4591306391597 - 2³⁰ = 4590232649773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4591306391297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295653195798 + 2295653195799.

It is an arithmetic number, because the mean of its divisors is an integer number (2295653195799).

Almost surely, 2^{4591306391597} is an apocalyptic number.

It is an amenable number.

4591306391597 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591306391597 is an equidigital number, since it uses as much as digits as its factorization.

4591306391597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27556200, while the sum is 62.

The spelling of 4591306391597 in words is "four trillion, five hundred ninety-one billion, three hundred six million, three hundred ninety-one thousand, five hundred ninety-seven".