268274563 has 4 divisors (see below), whose sum is σ = 277525440. Its totient is φ = 259023688.

The previous prime is 268274557. The next prime is 268274581. The reversal of 268274563 is 365472862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268274563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268274533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625395 + ... + 4625452.

It is an arithmetic number, because the mean of its divisors is an integer number (69381360).

Almost surely, 2^268274563 is an apocalyptic number.

268274563 is a deficient number, since it is larger than the sum of its proper divisors (9250877).

268274563 is an equidigital number, since it uses as much as digits as its factorization.

268274563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9250876.

The product of its digits is 483840, while the sum is 43.

The square root of 268274563 is about 16379.0891993419. The cubic root of 268274563 is about 644.9506706660.

The spelling of 268274563 in words is "two hundred sixty-eight million, two hundred seventy-four thousand, five hundred sixty-three".