268933564545 has 16 divisors (see below), whose sum is σ = 439448889600. Its totient is φ = 140379505664.

The previous prime is 268933564519. The next prime is 268933564573. The reversal of 268933564545 is 545465339862.

It is a cyclic number.

It is not a de Polignac number, because 268933564545 - 2⁵ = 268933564513 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190732320 + ... + 190733729.

It is an arithmetic number, because the mean of its divisors is an integer number (27465555600).

Almost surely, 2^268933564545 is an apocalyptic number.

It is an amenable number.

268933564545 is a deficient number, since it is larger than the sum of its proper divisors (170515325055).

268933564545 is a wasteful number, since it uses less digits than its factorization.

268933564545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381466104.

The product of its digits is 93312000, while the sum is 60.

The spelling of 268933564545 in words is "two hundred sixty-eight billion, nine hundred thirty-three million, five hundred sixty-four thousand, five hundred forty-five".