28784796028 has 6 divisors (see below), whose sum is σ = 50373393056. Its totient is φ = 14392398012.

The previous prime is 28784796013. The next prime is 28784796031. The reversal of 28784796028 is 82069748782.

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 as a sum of consecutive naturals, namely, 3598099500 + ... + 3598099507.

Almost surely, 2^28784796028 is an apocalyptic number.

It is an amenable number.

28784796028 is a deficient number, since it is larger than the sum of its proper divisors (21588597028).

28784796028 is a wasteful number, since it uses less digits than its factorization.

28784796028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196199011 (or 7196199009 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 28784796028 in words is "twenty-eight billion, seven hundred eighty-four million, seven hundred ninety-six thousand, twenty-eight".