485478989173 has 2 divisors, whose sum is σ = 485478989174. Its totient is φ = 485478989172.

The previous prime is 485478989159. The next prime is 485478989207. The reversal of 485478989173 is 371989874584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429925441969 + 55553547204 = 655687^2 + 235698^2 .

It is a cyclic number.

It is not a de Polignac number, because 485478989173 - 2¹⁷ = 485478858101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 485478989096 and 485478989105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485478989123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242739494586 + 242739494587.

It is an arithmetic number, because the mean of its divisors is an integer number (242739494587).

Almost surely, 2^485478989173 is an apocalyptic number.

It is an amenable number.

485478989173 is a deficient number, since it is larger than the sum of its proper divisors (1).

485478989173 is an equidigital number, since it uses as much as digits as its factorization.

485478989173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 73.

The spelling of 485478989173 in words is "four hundred eighty-five billion, four hundred seventy-eight million, nine hundred eighty-nine thousand, one hundred seventy-three".