28065357704 has 8 divisors (see below), whose sum is σ = 52622545710. Its totient is φ = 14032678848.

The previous prime is 28065357659. The next prime is 28065357721. The reversal of 28065357704 is 40775356082.

It can be written as a sum of positive squares in only one way, i.e., 14793856900 + 13271500804 = 121630^2 + 115202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1754084849 + ... + 1754084864.

Almost surely, 2^28065357704 is an apocalyptic number.

It is an amenable number.

28065357704 is a deficient number, since it is larger than the sum of its proper divisors (24557188006).

28065357704 is a wasteful number, since it uses less digits than its factorization.

28065357704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508169719 (or 3508169715 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 28065357704 in words is "twenty-eight billion, sixty-five million, three hundred fifty-seven thousand, seven hundred four".