268810481 has 2 divisors, whose sum is σ = 268810482. Its totient is φ = 268810480.

The previous prime is 268810447. The next prime is 268810519. The reversal of 268810481 is 184018862.

It is an a-pointer prime, because the next prime (268810519) can be obtained adding 268810481 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179318881 + 89491600 = 13391^2 + 9460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268810481 is a prime.

It is a super-2 number, since 2×268810481² = 144518149390902722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268810411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134405240 + 134405241.

It is an arithmetic number, because the mean of its divisors is an integer number (134405241).

Almost surely, 2^268810481 is an apocalyptic number.

It is an amenable number.

268810481 is a deficient number, since it is larger than the sum of its proper divisors (1).

268810481 is an equidigital number, since it uses as much as digits as its factorization.

268810481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 268810481 is about 16395.4408601904. The cubic root of 268810481 is about 645.3798463691.

The spelling of 268810481 in words is "two hundred sixty-eight million, eight hundred ten thousand, four hundred eighty-one".