28928365786 has 8 divisors (see below), whose sum is σ = 43398278784. Its totient is φ = 14462272860.

The previous prime is 28928365757. The next prime is 28928365787. The reversal of 28928365786 is 68756382982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28928365787) by changing a digit.

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, 936010 + ... + 966421.

It is an arithmetic number, because the mean of its divisors is an integer number (5424784848).

Almost surely, 2^28928365786 is an apocalyptic number.

28928365786 is a deficient number, since it is larger than the sum of its proper divisors (14469912998).

28928365786 is a wasteful number, since it uses less digits than its factorization.

28928365786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910036.

The product of its digits is 69672960, while the sum is 64.

The spelling of 28928365786 in words is "twenty-eight billion, nine hundred twenty-eight million, three hundred sixty-five thousand, seven hundred eighty-six".