173285801449 has 2 divisors, whose sum is σ = 173285801450. Its totient is φ = 173285801448.

The previous prime is 173285801413. The next prime is 173285801467. The reversal of 173285801449 is 944108582371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86824515600 + 86461285849 = 294660^2 + 294043^2 .

It is a cyclic number.

It is not a de Polignac number, because 173285801449 - 2²⁹ = 172748930537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173285801396 and 173285801405.

It is not a weakly prime, because it can be changed into another prime (173285807449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86642900724 + 86642900725.

It is an arithmetic number, because the mean of its divisors is an integer number (86642900725).

Almost surely, 2^173285801449 is an apocalyptic number.

It is an amenable number.

173285801449 is a deficient number, since it is larger than the sum of its proper divisors (1).

173285801449 is an equidigital number, since it uses as much as digits as its factorization.

173285801449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 173285801449 in words is "one hundred seventy-three billion, two hundred eighty-five million, eight hundred one thousand, four hundred forty-nine".