268131685 has 8 divisors (see below), whose sum is σ = 321977376. Its totient is φ = 214359120.

The previous prime is 268131683. The next prime is 268131697. The reversal of 268131685 is 586131862.

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

It is not a de Polignac number, because 268131685 - 2¹ = 268131683 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 (268131683) 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, 9859 + ... + 25168.

It is an arithmetic number, because the mean of its divisors is an integer number (40247172).

Almost surely, 2^268131685 is an apocalyptic number.

It is an amenable number.

268131685 is a deficient number, since it is larger than the sum of its proper divisors (53845691).

268131685 is a wasteful number, since it uses less digits than its factorization.

268131685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36563.

The product of its digits is 69120, while the sum is 40.

The square root of 268131685 is about 16374.7270206254. The cubic root of 268131685 is about 644.8361541241.

The spelling of 268131685 in words is "two hundred sixty-eight million, one hundred thirty-one thousand, six hundred eighty-five".