545209914617 has 2 divisors, whose sum is σ = 545209914618. Its totient is φ = 545209914616.

The previous prime is 545209914443. The next prime is 545209914619. The reversal of 545209914617 is 716419902545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503150467561 + 42059447056 = 709331^2 + 205084^2 .

It is a cyclic number.

It is not a de Polignac number, because 545209914617 - 2²⁸ = 544941479161 is a prime.

Together with 545209914619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545209914619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272604957308 + 272604957309.

It is an arithmetic number, because the mean of its divisors is an integer number (272604957309).

Almost surely, 2^545209914617 is an apocalyptic number.

It is an amenable number.

545209914617 is a deficient number, since it is larger than the sum of its proper divisors (1).

545209914617 is an equidigital number, since it uses as much as digits as its factorization.

545209914617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 545209914617 in words is "five hundred forty-five billion, two hundred nine million, nine hundred fourteen thousand, six hundred seventeen".