173272006489 has 2 divisors, whose sum is σ = 173272006490. Its totient is φ = 173272006488.

The previous prime is 173272006441. The next prime is 173272006513. The reversal of 173272006489 is 984600272371.

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., 170168625225 + 3103381264 = 412515^2 + 55708^2 .

It is a cyclic number.

It is not a de Polignac number, because 173272006489 - 2¹⁷ = 173271875417 is a prime.

It is not a weakly prime, because it can be changed into another prime (173272006409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86636003244 + 86636003245.

It is an arithmetic number, because the mean of its divisors is an integer number (86636003245).

Almost surely, 2^173272006489 is an apocalyptic number.

It is an amenable number.

173272006489 is a deficient number, since it is larger than the sum of its proper divisors (1).

173272006489 is an equidigital number, since it uses as much as digits as its factorization.

173272006489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 173272006489 in words is "one hundred seventy-three billion, two hundred seventy-two million, six thousand, four hundred eighty-nine".