268810881880783 has 4 divisors (see below), whose sum is σ = 293248234779048. Its totient is φ = 244373528982520.

The previous prime is 268810881880781. The next prime is 268810881880921. The reversal of 268810881880783 is 387088188018862.

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 268810881880783 - 2¹ = 268810881880781 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 (268810881880781) 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, 12218676449116 + ... + 12218676449137.

It is an arithmetic number, because the mean of its divisors is an integer number (73312058694762).

Almost surely, 2^{268810881880783} is an apocalyptic number.

268810881880783 is a deficient number, since it is larger than the sum of its proper divisors (24437352898265).

268810881880783 is a wasteful number, since it uses less digits than its factorization.

268810881880783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24437352898264.

The product of its (nonzero) digits is 528482304, while the sum is 76.

The spelling of 268810881880783 in words is "two hundred sixty-eight trillion, eight hundred ten billion, eight hundred eighty-one million, eight hundred eighty thousand, seven hundred eighty-three".