63320546473 has 2 divisors, whose sum is σ = 63320546474. Its totient is φ = 63320546472.

The previous prime is 63320546453. The next prime is 63320546491. The reversal of 63320546473 is 37464502336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35454253849 + 27866292624 = 188293^2 + 166932^2 .

It is a cyclic number.

It is not a de Polignac number, because 63320546473 - 2⁹ = 63320545961 is a prime.

It is not a weakly prime, because it can be changed into another prime (63320546453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31660273236 + 31660273237.

It is an arithmetic number, because the mean of its divisors is an integer number (31660273237).

Almost surely, 2^63320546473 is an apocalyptic number.

It is an amenable number.

63320546473 is a deficient number, since it is larger than the sum of its proper divisors (1).

63320546473 is an equidigital number, since it uses as much as digits as its factorization.

63320546473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 43.

The spelling of 63320546473 in words is "sixty-three billion, three hundred twenty million, five hundred forty-six thousand, four hundred seventy-three".