56428479744017 has 2 divisors, whose sum is σ = 56428479744018. Its totient is φ = 56428479744016.

The previous prime is 56428479743983. The next prime is 56428479744071. The reversal of 56428479744017 is 71044797482465.

Together with next prime (56428479744071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56102257140736 + 326222603281 = 7490144^2 + 571159^2 .

It is a cyclic number.

It is not a de Polignac number, because 56428479744017 - 2¹⁶ = 56428479678481 is a prime.

It is not a weakly prime, because it can be changed into another prime (56428479764017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28214239872008 + 28214239872009.

It is an arithmetic number, because the mean of its divisors is an integer number (28214239872009).

Almost surely, 2^{56428479744017} is an apocalyptic number.

It is an amenable number.

56428479744017 is a deficient number, since it is larger than the sum of its proper divisors (1).

56428479744017 is an equidigital number, since it uses as much as digits as its factorization.

56428479744017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 379330560, while the sum is 68.

The spelling of 56428479744017 in words is "fifty-six trillion, four hundred twenty-eight billion, four hundred seventy-nine million, seven hundred forty-four thousand, seventeen".