726614230545673 has 2 divisors, whose sum is σ = 726614230545674. Its totient is φ = 726614230545672.

The previous prime is 726614230545659. The next prime is 726614230545719. The reversal of 726614230545673 is 376545032416627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378277098726409 + 348337131819264 = 19449347^2 + 18663792^2 .

It is a cyclic number.

It is not a de Polignac number, because 726614230545673 - 2¹⁷ = 726614230414601 is a prime.

It is not a weakly prime, because it can be changed into another prime (726614230545473) 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, 363307115272836 + 363307115272837.

It is an arithmetic number, because the mean of its divisors is an integer number (363307115272837).

Almost surely, 2^{726614230545673} is an apocalyptic number.

It is an amenable number.

726614230545673 is a deficient number, since it is larger than the sum of its proper divisors (1).

726614230545673 is an equidigital number, since it uses as much as digits as its factorization.

726614230545673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 152409600, while the sum is 61.

The spelling of 726614230545673 in words is "seven hundred twenty-six trillion, six hundred fourteen billion, two hundred thirty million, five hundred forty-five thousand, six hundred seventy-three".