28849877785 has 8 divisors (see below), whose sum is σ = 34622138880. Its totient is φ = 23078378544.

The previous prime is 28849877779. The next prime is 28849877831. The reversal of 28849877785 is 58777894882.

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

It is a cyclic number.

It is not a de Polignac number, because 28849877785 - 2¹¹ = 28849875737 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 103545 + ... + 261574.

It is an arithmetic number, because the mean of its divisors is an integer number (4327767360).

Almost surely, 2^28849877785 is an apocalyptic number.

It is an amenable number.

28849877785 is a deficient number, since it is larger than the sum of its proper divisors (5772261095).

28849877785 is a wasteful number, since it uses less digits than its factorization.

28849877785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380927.

The product of its digits is 505774080, while the sum is 73.

The spelling of 28849877785 in words is "twenty-eight billion, eight hundred forty-nine million, eight hundred seventy-seven thousand, seven hundred eighty-five".