268544505551 has 8 divisors (see below), whose sum is σ = 312109837440. Its totient is φ = 226279631448.

The previous prime is 268544505503. The next prime is 268544505611. The reversal of 268544505551 is 155505445862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268544505551 - 2⁶ = 268544505487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268544505551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268544504551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325114001 + ... + 325114826.

It is an arithmetic number, because the mean of its divisors is an integer number (39013729680).

Almost surely, 2^268544505551 is an apocalyptic number.

268544505551 is a deficient number, since it is larger than the sum of its proper divisors (43565331889).

268544505551 is an equidigital number, since it uses as much as digits as its factorization.

268544505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650228893.

The product of its (nonzero) digits is 4800000, while the sum is 50.

The spelling of 268544505551 in words is "two hundred sixty-eight billion, five hundred forty-four million, five hundred five thousand, five hundred fifty-one".