268688405252 has 24 divisors (see below), whose sum is σ = 481844363616. Its totient is φ = 131027738688.

The previous prime is 268688405233. The next prime is 268688405257. The reversal of 268688405252 is 252504886862.

268688405252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (268688405257) 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 7 ways as a sum of consecutive naturals, for example, 1026113 + ... + 1261064.

It is an arithmetic number, because the mean of its divisors is an integer number (20076848484).

Almost surely, 2^268688405252 is an apocalyptic number.

It is an amenable number.

268688405252 is a deficient number, since it is larger than the sum of its proper divisors (213155958364).

268688405252 is a wasteful number, since it uses less digits than its factorization.

268688405252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287907 (or 2287905 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 56.

The spelling of 268688405252 in words is "two hundred sixty-eight billion, six hundred eighty-eight million, four hundred five thousand, two hundred fifty-two".