47894516017 has 2 divisors, whose sum is σ = 47894516018. Its totient is φ = 47894516016.

The previous prime is 47894515987. The next prime is 47894516051. The reversal of 47894516017 is 71061549874.

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., 37325853601 + 10568662416 = 193199^2 + 102804^2 .

It is a cyclic number.

It is not a de Polignac number, because 47894516017 - 2¹⁹ = 47893991729 is a prime.

It is a super-3 number, since 3×47894516017³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (47894510017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23947258008 + 23947258009.

It is an arithmetic number, because the mean of its divisors is an integer number (23947258009).

Almost surely, 2^47894516017 is an apocalyptic number.

It is an amenable number.

47894516017 is a deficient number, since it is larger than the sum of its proper divisors (1).

47894516017 is an equidigital number, since it uses as much as digits as its factorization.

47894516017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 47894516017 in words is "forty-seven billion, eight hundred ninety-four million, five hundred sixteen thousand, seventeen".