28866844088444 has 6 divisors (see below), whose sum is σ = 50516977154784. Its totient is φ = 14433422044220.

The previous prime is 28866844088429. The next prime is 28866844088483. The reversal of 28866844088444 is 44488044866882.

It is a super-2 number, since 2×28866844088444² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608355511052 + ... + 3608355511059.

It is an arithmetic number, because the mean of its divisors is an integer number (8419496192464).

Almost surely, 2^{28866844088444} is an apocalyptic number.

It is an amenable number.

28866844088444 is a deficient number, since it is larger than the sum of its proper divisors (21650133066340).

28866844088444 is a wasteful number, since it uses less digits than its factorization.

28866844088444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7216711022115 (or 7216711022113 counting only the distinct ones).

The product of its (nonzero) digits is 2415919104, while the sum is 74.

The spelling of 28866844088444 in words is "twenty-eight trillion, eight hundred sixty-six billion, eight hundred forty-four million, eighty-eight thousand, four hundred forty-four".