63288732173 has 2 divisors, whose sum is σ = 63288732174. Its totient is φ = 63288732172.

The previous prime is 63288732163. The next prime is 63288732191. The reversal of 63288732173 is 37123788236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35525841289 + 27762890884 = 188483^2 + 166622^2 .

It is a cyclic number.

It is not a de Polignac number, because 63288732173 - 2²⁰ = 63287683597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63288732163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31644366086 + 31644366087.

It is an arithmetic number, because the mean of its divisors is an integer number (31644366087).

Almost surely, 2^63288732173 is an apocalyptic number.

It is an amenable number.

63288732173 is a deficient number, since it is larger than the sum of its proper divisors (1).

63288732173 is an equidigital number, since it uses as much as digits as its factorization.

63288732173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The spelling of 63288732173 in words is "sixty-three billion, two hundred eighty-eight million, seven hundred thirty-two thousand, one hundred seventy-three".