65309273441 has 2 divisors, whose sum is σ = 65309273442. Its totient is φ = 65309273440.

The previous prime is 65309273411. The next prime is 65309273443. The reversal of 65309273441 is 14437290356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48900688225 + 16408585216 = 221135^2 + 128096^2 .

It is a cyclic number.

It is not a de Polignac number, because 65309273441 - 2¹⁰ = 65309272417 is a prime.

Together with 65309273443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 65309273392 and 65309273401.

It is not a weakly prime, because it can be changed into another prime (65309273443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32654636720 + 32654636721.

It is an arithmetic number, because the mean of its divisors is an integer number (32654636721).

Almost surely, 2^65309273441 is an apocalyptic number.

It is an amenable number.

65309273441 is a deficient number, since it is larger than the sum of its proper divisors (1).

65309273441 is an equidigital number, since it uses as much as digits as its factorization.

65309273441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 65309273441 in words is "sixty-five billion, three hundred nine million, two hundred seventy-three thousand, four hundred forty-one".