268221888012 has 48 divisors (see below), whose sum is σ = 674153383680. Its totient is φ = 82510229568.

The previous prime is 268221887971. The next prime is 268221888017. The reversal of 268221888012 is 210888122862.

It is a happy number.

268221888012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (268221888017) 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 15 ways as a sum of consecutive naturals, for example, 462553 + ... + 866255.

It is an arithmetic number, because the mean of its divisors is an integer number (14044862160).

Almost surely, 2^268221888012 is an apocalyptic number.

It is an amenable number.

268221888012 is an abundant number, since it is smaller than the sum of its proper divisors (405931495668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268221888012 is a wasteful number, since it uses less digits than its factorization.

268221888012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407982 (or 407980 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 48.

The spelling of 268221888012 in words is "two hundred sixty-eight billion, two hundred twenty-one million, eight hundred eighty-eight thousand, twelve".