28229333665653 has 6 divisors (see below), whose sum is σ = 40775704183734. Its totient is φ = 18819555777096.

The previous prime is 28229333665633. The next prime is 28229333665681. The reversal of 28229333665653 is 35656633392282.

28229333665653 is a `hidden beast` number, since 2 + 8 + 2 + 2 + 9 + 3 + 3 + 3 + 66 + 565 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14269672460484 + 13959661205169 = 3777522^2 + 3736263^2 .

It is not a de Polignac number, because 28229333665653 - 2¹⁰ = 28229333664629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28229333665633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1568296314750 + ... + 1568296314767.

It is an arithmetic number, because the mean of its divisors is an integer number (6795950697289).

Almost surely, 2^{28229333665653} is an apocalyptic number.

It is an amenable number.

28229333665653 is a deficient number, since it is larger than the sum of its proper divisors (12546370518081).

28229333665653 is a wasteful number, since it uses less digits than its factorization.

28229333665653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136592629523 (or 3136592629520 counting only the distinct ones).

The product of its digits is 251942400, while the sum is 63.

The spelling of 28229333665653 in words is "twenty-eight trillion, two hundred twenty-nine billion, three hundred thirty-three million, six hundred sixty-five thousand, six hundred fifty-three".