268748763 has 4 divisors (see below), whose sum is σ = 358331688. Its totient is φ = 179165840.

The previous prime is 268748747. The next prime is 268748789. The reversal of 268748763 is 367847862.

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

It is a cyclic number.

It is not a de Polignac number, because 268748763 - 2⁴ = 268748747 is a prime.

It is a super-2 number, since 2×268748763² = 144451795228060338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268748063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44791458 + ... + 44791463.

It is an arithmetic number, because the mean of its divisors is an integer number (89582922).

Almost surely, 2^268748763 is an apocalyptic number.

268748763 is a deficient number, since it is larger than the sum of its proper divisors (89582925).

268748763 is an equidigital number, since it uses as much as digits as its factorization.

268748763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89582924.

The product of its digits is 2709504, while the sum is 51.

The square root of 268748763 is about 16393.5585825653. The cubic root of 268748763 is about 645.3304502270.

Subtracting 268748763 from its reverse (367847862), we obtain a palindrome (99099099).

The spelling of 268748763 in words is "two hundred sixty-eight million, seven hundred forty-eight thousand, seven hundred sixty-three".