425728224017 has 2 divisors, whose sum is σ = 425728224018. Its totient is φ = 425728224016.

The previous prime is 425728223981. The next prime is 425728224041. The reversal of 425728224017 is 710422827524.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425359622416 + 368601601 = 652196^2 + 19199^2 .

It is a cyclic number.

It is not a de Polignac number, because 425728224017 - 2¹⁸ = 425727961873 is a prime.

It is not a weakly prime, because it can be changed into another prime (425728224517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212864112008 + 212864112009.

It is an arithmetic number, because the mean of its divisors is an integer number (212864112009).

Almost surely, 2^425728224017 is an apocalyptic number.

It is an amenable number.

425728224017 is a deficient number, since it is larger than the sum of its proper divisors (1).

425728224017 is an equidigital number, since it uses as much as digits as its factorization.

425728224017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 425728224017 in words is "four hundred twenty-five billion, seven hundred twenty-eight million, two hundred twenty-four thousand, seventeen".