705488732173 has 2 divisors, whose sum is σ = 705488732174. Its totient is φ = 705488732172.

The previous prime is 705488732171. The next prime is 705488732177. The reversal of 705488732173 is 371237884507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458278903369 + 247209828804 = 676963^2 + 497202^2 .

It is a cyclic number.

It is not a de Polignac number, because 705488732173 - 2¹ = 705488732171 is a prime.

Together with 705488732171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705488732171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352744366086 + 352744366087.

It is an arithmetic number, because the mean of its divisors is an integer number (352744366087).

Almost surely, 2^705488732173 is an apocalyptic number.

It is an amenable number.

705488732173 is a deficient number, since it is larger than the sum of its proper divisors (1).

705488732173 is an equidigital number, since it uses as much as digits as its factorization.

705488732173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 705488732173 in words is "seven hundred five billion, four hundred eighty-eight million, seven hundred thirty-two thousand, one hundred seventy-three".