65673999937643 has 2 divisors, whose sum is σ = 65673999937644. Its totient is φ = 65673999937642.

The previous prime is 65673999937627. The next prime is 65673999937661. The reversal of 65673999937643 is 34673999937656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65673999937643 - 2⁴ = 65673999937627 is a prime.

It is not a weakly prime, because it can be changed into another prime (65673999937603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836999968821 + 32836999968822.

It is an arithmetic number, because the mean of its divisors is an integer number (32836999968822).

Almost surely, 2^{65673999937643} is an apocalyptic number.

65673999937643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65673999937643 is an equidigital number, since it uses as much as digits as its factorization.

65673999937643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37498476960, while the sum is 86.

The spelling of 65673999937643 in words is "sixty-five trillion, six hundred seventy-three billion, nine hundred ninety-nine million, nine hundred thirty-seven thousand, six hundred forty-three".