65735239697 has 2 divisors, whose sum is σ = 65735239698. Its totient is φ = 65735239696.

The previous prime is 65735239613. The next prime is 65735239699. The reversal of 65735239697 is 79693253756.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38412472081 + 27322767616 = 195991^2 + 165296^2 .

It is a cyclic number.

It is not a de Polignac number, because 65735239697 - 2¹⁶ = 65735174161 is a prime.

It is a super-2 number, since 2×65735239697² (a number of 22 digits) contains 22 as substring.

Together with 65735239699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65735239699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32867619848 + 32867619849.

It is an arithmetic number, because the mean of its divisors is an integer number (32867619849).

Almost surely, 2^65735239697 is an apocalyptic number.

It is an amenable number.

65735239697 is a deficient number, since it is larger than the sum of its proper divisors (1).

65735239697 is an equidigital number, since it uses as much as digits as its factorization.

65735239697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64297800, while the sum is 62.

The spelling of 65735239697 in words is "sixty-five billion, seven hundred thirty-five million, two hundred thirty-nine thousand, six hundred ninety-seven".