268695391705 has 64 divisors (see below), whose sum is σ = 367572764160. Its totient is φ = 187064064000.

The previous prime is 268695391667. The next prime is 268695391747. The reversal of 268695391705 is 507193596862.

It is not a de Polignac number, because 268695391705 - 2⁷ = 268695391577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44038155 + ... + 44044255.

It is an arithmetic number, because the mean of its divisors is an integer number (5743324440).

Almost surely, 2^268695391705 is an apocalyptic number.

It is an amenable number.

268695391705 is a deficient number, since it is larger than the sum of its proper divisors (98877372455).

268695391705 is a wasteful number, since it uses less digits than its factorization.

268695391705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562.

The product of its (nonzero) digits is 24494400, while the sum is 61.

The spelling of 268695391705 in words is "two hundred sixty-eight billion, six hundred ninety-five million, three hundred ninety-one thousand, seven hundred five".