47211217032817 has 2 divisors, whose sum is σ = 47211217032818. Its totient is φ = 47211217032816.

The previous prime is 47211217032731. The next prime is 47211217032839. The reversal of 47211217032817 is 71823071211274.

47211217032817 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., 47145471457536 + 65745575281 = 6866256^2 + 256409^2 .

It is a cyclic number.

It is not a de Polignac number, because 47211217032817 - 2³⁵ = 47176857294449 is a prime.

It is not a weakly prime, because it can be changed into another prime (47211217032017) 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, 23605608516408 + 23605608516409.

It is an arithmetic number, because the mean of its divisors is an integer number (23605608516409).

Almost surely, 2^{47211217032817} is an apocalyptic number.

It is an amenable number.

47211217032817 is a deficient number, since it is larger than the sum of its proper divisors (1).

47211217032817 is an equidigital number, since it uses as much as digits as its factorization.

47211217032817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 47211217032817 in words is "forty-seven trillion, two hundred eleven billion, two hundred seventeen million, thirty-two thousand, eight hundred seventeen".