268583663 has 4 divisors (see below), whose sum is σ = 284382720. Its totient is φ = 252784608.

The previous prime is 268583657. The next prime is 268583681. The reversal of 268583663 is 366385862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366385862 = 2 ⋅183192931.

It is a cyclic number.

It is not a de Polignac number, because 268583663 - 2⁶ = 268583599 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 (268573663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7899503 + ... + 7899536.

It is an arithmetic number, because the mean of its divisors is an integer number (71095680).

Almost surely, 2^268583663 is an apocalyptic number.

268583663 is a deficient number, since it is larger than the sum of its proper divisors (15799057).

268583663 is a wasteful number, since it uses less digits than its factorization.

268583663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799056.

The product of its digits is 1244160, while the sum is 47.

The square root of 268583663 is about 16388.5222945817. The cubic root of 268583663 is about 645.1982748807.

The spelling of 268583663 in words is "two hundred sixty-eight million, five hundred eighty-three thousand, six hundred sixty-three".