72371626543717 has 2 divisors, whose sum is σ = 72371626543718. Its totient is φ = 72371626543716.

The previous prime is 72371626543709. The next prime is 72371626543739. The reversal of 72371626543717 is 71734562617327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64432311596676 + 7939314947041 = 8026974^2 + 2817679^2 .

It is a cyclic number.

It is not a de Polignac number, because 72371626543717 - 2³ = 72371626543709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72371626544717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36185813271858 + 36185813271859.

It is an arithmetic number, because the mean of its divisors is an integer number (36185813271859).

Almost surely, 2^{72371626543717} is an apocalyptic number.

It is an amenable number.

72371626543717 is a deficient number, since it is larger than the sum of its proper divisors (1).

72371626543717 is an equidigital number, since it uses as much as digits as its factorization.

72371626543717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62233920, while the sum is 61.

The spelling of 72371626543717 in words is "seventy-two trillion, three hundred seventy-one billion, six hundred twenty-six million, five hundred forty-three thousand, seven hundred seventeen".