47866999966873 has 2 divisors, whose sum is σ = 47866999966874. Its totient is φ = 47866999966872.

The previous prime is 47866999966847. The next prime is 47866999966879. The reversal of 47866999966873 is 37866999966874.

47866999966873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36897205530249 + 10969794436624 = 6074307^2 + 3312068^2 .

It is a cyclic number.

It is not a de Polignac number, because 47866999966873 - 2⁹ = 47866999966361 is a prime.

It is not a weakly prime, because it can be changed into another prime (47866999966879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23933499983436 + 23933499983437.

It is an arithmetic number, because the mean of its divisors is an integer number (23933499983437).

Almost surely, 2^{47866999966873} is an apocalyptic number.

It is an amenable number.

47866999966873 is a deficient number, since it is larger than the sum of its proper divisors (1).

47866999966873 is an equidigital number, since it uses as much as digits as its factorization.

47866999966873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 319987003392, while the sum is 97.

Subtracting from 47866999966873 its reverse (37866999966874), we obtain a palindrome (9999999999999).

The spelling of 47866999966873 in words is "forty-seven trillion, eight hundred sixty-six billion, nine hundred ninety-nine million, nine hundred sixty-six thousand, eight hundred seventy-three".