617699349222871 has 2 divisors, whose sum is σ = 617699349222872. Its totient is φ = 617699349222870.

The previous prime is 617699349222799. The next prime is 617699349222881. The reversal of 617699349222871 is 178222943996716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 617699349222871 - 2³⁷ = 617561910269399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617699349222881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308849674611435 + 308849674611436.

It is an arithmetic number, because the mean of its divisors is an integer number (308849674611436).

Almost surely, 2^{617699349222871} is an apocalyptic number.

617699349222871 is a deficient number, since it is larger than the sum of its proper divisors (1).

617699349222871 is an equidigital number, since it uses as much as digits as its factorization.

617699349222871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987614208, while the sum is 76.

The spelling of 617699349222871 in words is "six hundred seventeen trillion, six hundred ninety-nine billion, three hundred forty-nine million, two hundred twenty-two thousand, eight hundred seventy-one".