268490066533 has 16 divisors (see below), whose sum is σ = 289913533056. Its totient is φ = 247177529280.

The previous prime is 268490066531. The next prime is 268490066539. The reversal of 268490066533 is 335660094862.

It is a cyclic number.

It is not a de Polignac number, because 268490066533 - 2¹ = 268490066531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268490066531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7682088 + ... + 7716958.

It is an arithmetic number, because the mean of its divisors is an integer number (18119595816).

Almost surely, 2^268490066533 is an apocalyptic number.

It is an amenable number.

268490066533 is a deficient number, since it is larger than the sum of its proper divisors (21423466523).

268490066533 is a wasteful number, since it uses less digits than its factorization.

268490066533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36444.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 268490066533 in words is "two hundred sixty-eight billion, four hundred ninety million, sixty-six thousand, five hundred thirty-three".