617673396313697 has 2 divisors, whose sum is σ = 617673396313698. Its totient is φ = 617673396313696.

The previous prime is 617673396313681. The next prime is 617673396313769. The reversal of 617673396313697 is 796313693376716.

Together with next prime (617673396313769) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374255953724416 + 243417442589281 = 19345696^2 + 15601841^2 .

It is a cyclic number.

It is not a de Polignac number, because 617673396313697 - 2⁴ = 617673396313681 is a prime.

It is not a weakly prime, because it can be changed into another prime (617673396373697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308836698156848 + 308836698156849.

It is an arithmetic number, because the mean of its divisors is an integer number (308836698156849).

Almost surely, 2^{617673396313697} is an apocalyptic number.

It is an amenable number.

617673396313697 is a deficient number, since it is larger than the sum of its proper divisors (1).

617673396313697 is an equidigital number, since it uses as much as digits as its factorization.

617673396313697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916548208, while the sum is 77.

The spelling of 617673396313697 in words is "six hundred seventeen trillion, six hundred seventy-three billion, three hundred ninety-six million, three hundred thirteen thousand, six hundred ninety-seven".