5475379891217 has 2 divisors, whose sum is σ = 5475379891218. Its totient is φ = 5475379891216.

The previous prime is 5475379891199. The next prime is 5475379891229. The reversal of 5475379891217 is 7121989735745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5469723497536 + 5656393681 = 2338744^2 + 75209^2 .

It is a cyclic number.

It is not a de Polignac number, because 5475379891217 - 2⁶ = 5475379891153 is a prime.

It is not a weakly prime, because it can be changed into another prime (5475379891277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2737689945608 + 2737689945609.

It is an arithmetic number, because the mean of its divisors is an integer number (2737689945609).

Almost surely, 2^{5475379891217} is an apocalyptic number.

It is an amenable number.

5475379891217 is a deficient number, since it is larger than the sum of its proper divisors (1).

5475379891217 is an equidigital number, since it uses as much as digits as its factorization.

5475379891217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 133358400, while the sum is 68.

The spelling of 5475379891217 in words is "five trillion, four hundred seventy-five billion, three hundred seventy-nine million, eight hundred ninety-one thousand, two hundred seventeen".