47182356217 has 2 divisors, whose sum is σ = 47182356218. Its totient is φ = 47182356216.

The previous prime is 47182356191. The next prime is 47182356253. The reversal of 47182356217 is 71265328174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39714112656 + 7468243561 = 199284^2 + 86419^2 .

It is a cyclic number.

It is not a de Polignac number, because 47182356217 - 2¹⁹ = 47181831929 is a prime.

It is not a weakly prime, because it can be changed into another prime (47182356517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23591178108 + 23591178109.

It is an arithmetic number, because the mean of its divisors is an integer number (23591178109).

Almost surely, 2^47182356217 is an apocalyptic number.

It is an amenable number.

47182356217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47182356217 is an equidigital number, since it uses as much as digits as its factorization.

47182356217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 46.

The spelling of 47182356217 in words is "forty-seven billion, one hundred eighty-two million, three hundred fifty-six thousand, two hundred seventeen".