244121287868 has 12 divisors (see below), whose sum is σ = 428231856360. Its totient is φ = 121769328912.

The previous prime is 244121287867. The next prime is 244121287871. The reversal of 244121287868 is 868782121442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244121287867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72826871 + ... + 72830222.

It is an arithmetic number, because the mean of its divisors is an integer number (35685988030).

Almost surely, 2^244121287868 is an apocalyptic number.

It is an amenable number.

244121287868 is a deficient number, since it is larger than the sum of its proper divisors (184110568492).

244121287868 is a wasteful number, since it uses less digits than its factorization.

244121287868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145657516 (or 145657514 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 53.

The spelling of 244121287868 in words is "two hundred forty-four billion, one hundred twenty-one million, two hundred eighty-seven thousand, eight hundred sixty-eight".