65765048773 has 2 divisors, whose sum is σ = 65765048774. Its totient is φ = 65765048772.

The previous prime is 65765048771. The next prime is 65765048813. The reversal of 65765048773 is 37784056756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47498715364 + 18266333409 = 217942^2 + 135153^2 .

It is a cyclic number.

It is not a de Polignac number, because 65765048773 - 2¹ = 65765048771 is a prime.

Together with 65765048771, 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 (65765048771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32882524386 + 32882524387.

It is an arithmetic number, because the mean of its divisors is an integer number (32882524387).

Almost surely, 2^65765048773 is an apocalyptic number.

It is an amenable number.

65765048773 is a deficient number, since it is larger than the sum of its proper divisors (1).

65765048773 is an equidigital number, since it uses as much as digits as its factorization.

65765048773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29635200, while the sum is 58.

The spelling of 65765048773 in words is "sixty-five billion, seven hundred sixty-five million, forty-eight thousand, seven hundred seventy-three".