41663533973 has 2 divisors, whose sum is σ = 41663533974. Its totient is φ = 41663533972.

The previous prime is 41663533957. The next prime is 41663533991. The reversal of 41663533973 is 37933536614.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33965752804 + 7697781169 = 184298^2 + 87737^2 .

It is a cyclic number.

It is not a de Polignac number, because 41663533973 - 2⁴ = 41663533957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41663533073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20831766986 + 20831766987.

It is an arithmetic number, because the mean of its divisors is an integer number (20831766987).

Almost surely, 2^41663533973 is an apocalyptic number.

It is an amenable number.

41663533973 is a deficient number, since it is larger than the sum of its proper divisors (1).

41663533973 is an equidigital number, since it uses as much as digits as its factorization.

41663533973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 50.

The spelling of 41663533973 in words is "forty-one billion, six hundred sixty-three million, five hundred thirty-three thousand, nine hundred seventy-three".