945273389729 has 2 divisors, whose sum is σ = 945273389730. Its totient is φ = 945273389728.

The previous prime is 945273389717. The next prime is 945273389789. The reversal of 945273389729 is 927983372549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759602888704 + 185670501025 = 871552^2 + 430895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945273389729 is a prime.

It is not a weakly prime, because it can be changed into another prime (945273389789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472636694864 + 472636694865.

It is an arithmetic number, because the mean of its divisors is an integer number (472636694865).

Almost surely, 2^945273389729 is an apocalyptic number.

It is an amenable number.

945273389729 is a deficient number, since it is larger than the sum of its proper divisors (1).

945273389729 is an equidigital number, since it uses as much as digits as its factorization.

945273389729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205752960, while the sum is 68.

The spelling of 945273389729 in words is "nine hundred forty-five billion, two hundred seventy-three million, three hundred eighty-nine thousand, seven hundred twenty-nine".