28868082640244 has 6 divisors (see below), whose sum is σ = 50519144620434. Its totient is φ = 14434041320120.

The previous prime is 28868082640219. The next prime is 28868082640291. The reversal of 28868082640244 is 44204628086882.

It can be written as a sum of positive squares in only one way, i.e., 22289370630244 + 6578712010000 = 4721162^2 + 2564900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608510330027 + ... + 3608510330034.

It is an arithmetic number, because the mean of its divisors is an integer number (8419857436739).

Almost surely, 2^{28868082640244} is an apocalyptic number.

It is an amenable number.

28868082640244 is a deficient number, since it is larger than the sum of its proper divisors (21651061980190).

28868082640244 is a wasteful number, since it uses less digits than its factorization.

28868082640244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217020660065 (or 7217020660063 counting only the distinct ones).

The product of its (nonzero) digits is 75497472, while the sum is 62.

The spelling of 28868082640244 in words is "twenty-eight trillion, eight hundred sixty-eight billion, eighty-two million, six hundred forty thousand, two hundred forty-four".