1728064321153 has 2 divisors, whose sum is σ = 1728064321154. Its totient is φ = 1728064321152.

The previous prime is 1728064321069. The next prime is 1728064321199. The reversal of 1728064321153 is 3511234608271.

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., 1338167731264 + 389896589889 = 1156792^2 + 624417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1728064321153 - 2³³ = 1719474386561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1728064321453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864032160576 + 864032160577.

It is an arithmetic number, because the mean of its divisors is an integer number (864032160577).

Almost surely, 2^{1728064321153} is an apocalyptic number.

It is an amenable number.

1728064321153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1728064321153 is an equidigital number, since it uses as much as digits as its factorization.

1728064321153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 1728064321153 in words is "one trillion, seven hundred twenty-eight billion, sixty-four million, three hundred twenty-one thousand, one hundred fifty-three".