268489489944 has 64 divisors (see below), whose sum is σ = 728548208640. Its totient is φ = 81961649280.

The previous prime is 268489489943. The next prime is 268489489967. The reversal of 268489489944 is 449984984862.

268489489944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268489489943) 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, 3348342 + ... + 3427589.

It is an arithmetic number, because the mean of its divisors is an integer number (11383565760).

Almost surely, 2^268489489944 is an apocalyptic number.

268489489944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

268489489944 is an abundant number, since it is smaller than the sum of its proper divisors (460058718696).

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

268489489944 is a wasteful number, since it uses less digits than its factorization.

268489489944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776080 (or 6776076 counting only the distinct ones).

The product of its digits is 1146617856, while the sum is 75.

The spelling of 268489489944 in words is "two hundred sixty-eight billion, four hundred eighty-nine million, four hundred eighty-nine thousand, nine hundred forty-four".