28065084105 has 16 divisors (see below), whose sum is σ = 44919483840. Its totient is φ = 14962928448.

The previous prime is 28065084101. The next prime is 28065084107. The reversal of 28065084105 is 50148056082.

It is not a de Polignac number, because 28065084105 - 2² = 28065084101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28065084101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274222 + ... + 362391.

It is an arithmetic number, because the mean of its divisors is an integer number (2807467740).

Almost surely, 2^28065084105 is an apocalyptic number.

It is an amenable number.

28065084105 is a deficient number, since it is larger than the sum of its proper divisors (16854399735).

28065084105 is a wasteful number, since it uses less digits than its factorization.

28065084105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639560.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28065084105 in words is "twenty-eight billion, sixty-five million, eighty-four thousand, one hundred five".