268495064709 has 4 divisors (see below), whose sum is σ = 357993419616. Its totient is φ = 178996709804.

The previous prime is 268495064699. The next prime is 268495064723. The reversal of 268495064709 is 907460594862.

268495064709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268495064709 - 2⁹ = 268495064197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268495014709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44749177449 + ... + 44749177454.

It is an arithmetic number, because the mean of its divisors is an integer number (89498354904).

Almost surely, 2^268495064709 is an apocalyptic number.

It is an amenable number.

268495064709 is a deficient number, since it is larger than the sum of its proper divisors (89498354907).

268495064709 is an equidigital number, since it uses as much as digits as its factorization.

268495064709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89498354906.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 268495064709 in words is "two hundred sixty-eight billion, four hundred ninety-five million, sixty-four thousand, seven hundred nine".