268495150049261 has 2 divisors, whose sum is σ = 268495150049262. Its totient is φ = 268495150049260.

The previous prime is 268495150049153. The next prime is 268495150049327. The reversal of 268495150049261 is 162940051594862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153944815502500 + 114550334546761 = 12407450^2 + 10702819^2 .

It is a cyclic number.

It is not a de Polignac number, because 268495150049261 - 2⁴² = 264097103538157 is a prime.

It is a super-2 number, since 2×268495150049261² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268495150049194 and 268495150049203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268495150049461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134247575024630 + 134247575024631.

It is an arithmetic number, because the mean of its divisors is an integer number (134247575024631).

Almost surely, 2^{268495150049261} is an apocalyptic number.

It is an amenable number.

268495150049261 is a deficient number, since it is larger than the sum of its proper divisors (1).

268495150049261 is an equidigital number, since it uses as much as digits as its factorization.

268495150049261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37324800, while the sum is 62.

The spelling of 268495150049261 in words is "two hundred sixty-eight trillion, four hundred ninety-five billion, one hundred fifty million, forty-nine thousand, two hundred sixty-one".