65635358273 has 2 divisors, whose sum is σ = 65635358274. Its totient is φ = 65635358272.

The previous prime is 65635358249. The next prime is 65635358287. The reversal of 65635358273 is 37285353656.

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., 65094888769 + 540469504 = 255137^2 + 23248^2 .

It is a cyclic number.

It is not a de Polignac number, because 65635358273 - 2⁶ = 65635358209 is a prime.

It is not a weakly prime, because it can be changed into another prime (65635358213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32817679136 + 32817679137.

It is an arithmetic number, because the mean of its divisors is an integer number (32817679137).

Almost surely, 2^65635358273 is an apocalyptic number.

It is an amenable number.

65635358273 is a deficient number, since it is larger than the sum of its proper divisors (1).

65635358273 is an equidigital number, since it uses as much as digits as its factorization.

65635358273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608000, while the sum is 53.

The spelling of 65635358273 in words is "sixty-five billion, six hundred thirty-five million, three hundred fifty-eight thousand, two hundred seventy-three".