47101885217 has 2 divisors, whose sum is σ = 47101885218. Its totient is φ = 47101885216.

The previous prime is 47101885169. The next prime is 47101885247. The reversal of 47101885217 is 71258810174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45760055056 + 1341830161 = 213916^2 + 36631^2 .

It is a cyclic number.

It is not a de Polignac number, because 47101885217 - 2¹⁸ = 47101623073 is a prime.

It is not a weakly prime, because it can be changed into another prime (47101885247) 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, 23550942608 + 23550942609.

It is an arithmetic number, because the mean of its divisors is an integer number (23550942609).

Almost surely, 2^47101885217 is an apocalyptic number.

It is an amenable number.

47101885217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47101885217 is an equidigital number, since it uses as much as digits as its factorization.

47101885217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 44.

The spelling of 47101885217 in words is "forty-seven billion, one hundred one million, eight hundred eighty-five thousand, two hundred seventeen".