268502317378601 has 2 divisors, whose sum is σ = 268502317378602. Its totient is φ = 268502317378600.

The previous prime is 268502317378579. The next prime is 268502317378609. The reversal of 268502317378601 is 106873713205862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179122783272976 + 89379534105625 = 13383676^2 + 9454075^2 .

It is a cyclic number.

It is not a de Polignac number, because 268502317378601 - 2¹⁴ = 268502317362217 is a prime.

It is a super-3 number, since 3×268502317378601³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (268502317378609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134251158689300 + 134251158689301.

It is an arithmetic number, because the mean of its divisors is an integer number (134251158689301).

Almost surely, 2^{268502317378601} is an apocalyptic number.

It is an amenable number.

268502317378601 is a deficient number, since it is larger than the sum of its proper divisors (1).

268502317378601 is an equidigital number, since it uses as much as digits as its factorization.

268502317378601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 268502317378601 in words is "two hundred sixty-eight trillion, five hundred two billion, three hundred seventeen million, three hundred seventy-eight thousand, six hundred one".