617666673293 has 2 divisors, whose sum is σ = 617666673294. Its totient is φ = 617666673292.

The previous prime is 617666673193. The next prime is 617666673313. The reversal of 617666673293 is 392376666716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446848130089 + 170818543204 = 668467^2 + 413302^2 .

It is a cyclic number.

It is not a de Polignac number, because 617666673293 - 2¹⁰ = 617666672269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617666673193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308833336646 + 308833336647.

It is an arithmetic number, because the mean of its divisors is an integer number (308833336647).

Almost surely, 2^617666673293 is an apocalyptic number.

It is an amenable number.

617666673293 is a deficient number, since it is larger than the sum of its proper divisors (1).

617666673293 is an equidigital number, since it uses as much as digits as its factorization.

617666673293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 62.

The spelling of 617666673293 in words is "six hundred seventeen billion, six hundred sixty-six million, six hundred seventy-three thousand, two hundred ninety-three".