268485581684 has 12 divisors (see below), whose sum is σ = 470008682724. Its totient is φ = 134197386624.

The previous prime is 268485581677. The next prime is 268485581711. The reversal of 268485581684 is 486185584862.

It can be written as a sum of positive squares in 2 ways, for example, as 174130944100 + 94354637584 = 417290^2 + 307172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 268485581684.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11337749 + ... + 11361404.

It is an arithmetic number, because the mean of its divisors is an integer number (39167390227).

Almost surely, 2^268485581684 is an apocalyptic number.

It is an amenable number.

268485581684 is a deficient number, since it is larger than the sum of its proper divisors (201523101040).

268485581684 is a wasteful number, since it uses less digits than its factorization.

268485581684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22702114 (or 22702112 counting only the distinct ones).

The product of its digits is 117964800, while the sum is 65.

The spelling of 268485581684 in words is "two hundred sixty-eight billion, four hundred eighty-five million, five hundred eighty-one thousand, six hundred eighty-four".