28743330292 has 12 divisors (see below), whose sum is σ = 50302973700. Its totient is φ = 14371052096.

The previous prime is 28743330289. The next prime is 28743330353. The reversal of 28743330292 is 29203334782.

It can be written as a sum of positive squares in 2 ways, for example, as 16906760676 + 11836569616 = 130026^2 + 108796^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 38167 + ... + 242782.

It is an arithmetic number, because the mean of its divisors is an integer number (4191914475).

Almost surely, 2^28743330292 is an apocalyptic number.

It is an amenable number.

28743330292 is a deficient number, since it is larger than the sum of its proper divisors (21559643408).

28743330292 is a wasteful number, since it uses less digits than its factorization.

28743330292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306530 (or 306528 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 28743330292 in words is "twenty-eight billion, seven hundred forty-three million, three hundred thirty thousand, two hundred ninety-two".