268941063055481 has 2 divisors, whose sum is σ = 268941063055482. Its totient is φ = 268941063055480.

The previous prime is 268941063055463. The next prime is 268941063055667. The reversal of 268941063055481 is 184550360149862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268833439691881 + 107623363600 = 16396141^2 + 328060^2 .

It is a cyclic number.

It is not a de Polignac number, because 268941063055481 - 2²⁶ = 268940995946617 is a prime.

It is a super-2 number, since 2×268941063055481² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268941063055411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134470531527740 + 134470531527741.

It is an arithmetic number, because the mean of its divisors is an integer number (134470531527741).

Almost surely, 2^{268941063055481} is an apocalyptic number.

It is an amenable number.

268941063055481 is a deficient number, since it is larger than the sum of its proper divisors (1).

268941063055481 is an equidigital number, since it uses as much as digits as its factorization.

268941063055481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 268941063055481 in words is "two hundred sixty-eight trillion, nine hundred forty-one billion, sixty-three million, fifty-five thousand, four hundred eighty-one".