65213054773 has 2 divisors, whose sum is σ = 65213054774. Its totient is φ = 65213054772.

The previous prime is 65213054747. The next prime is 65213054789. The reversal of 65213054773 is 37745031256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51043009329 + 14170045444 = 225927^2 + 119038^2 .

It is a cyclic number.

It is not a de Polignac number, because 65213054773 - 2¹³ = 65213046581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65213054723) 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, 32606527386 + 32606527387.

It is an arithmetic number, because the mean of its divisors is an integer number (32606527387).

Almost surely, 2^65213054773 is an apocalyptic number.

It is an amenable number.

65213054773 is a deficient number, since it is larger than the sum of its proper divisors (1).

65213054773 is an equidigital number, since it uses as much as digits as its factorization.

65213054773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 65213054773 in words is "sixty-five billion, two hundred thirteen million, fifty-four thousand, seven hundred seventy-three".