726216404612597 has 2 divisors, whose sum is σ = 726216404612598. Its totient is φ = 726216404612596.

The previous prime is 726216404612581. The next prime is 726216404612683. The reversal of 726216404612597 is 795216404612627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662617151305201 + 63599253307396 = 25741351^2 + 7974914^2 .

It is a cyclic number.

It is not a de Polignac number, because 726216404612597 - 2⁴ = 726216404612581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726216403612597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363108202306298 + 363108202306299.

It is an arithmetic number, because the mean of its divisors is an integer number (363108202306299).

Almost surely, 2^{726216404612597} is an apocalyptic number.

It is an amenable number.

726216404612597 is a deficient number, since it is larger than the sum of its proper divisors (1).

726216404612597 is an equidigital number, since it uses as much as digits as its factorization.

726216404612597 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 62.

The spelling of 726216404612597 in words is "seven hundred twenty-six trillion, two hundred sixteen billion, four hundred four million, six hundred twelve thousand, five hundred ninety-seven".