28065312927 has 24 divisors (see below), whose sum is σ = 43825723760. Its totient is φ = 17246390400.

The previous prime is 28065312859. The next prime is 28065312929. The reversal of 28065312927 is 72921356082.

28065312927 is a `hidden beast` number, since 28 + 0 + 6 + 531 + 2 + 92 + 7 = 666.

It is not a de Polignac number, because 28065312927 - 2¹⁰ = 28065311903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28065312929) 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 23 ways as a sum of consecutive naturals, for example, 2211574 + ... + 2224227.

Almost surely, 2^28065312927 is an apocalyptic number.

28065312927 is a deficient number, since it is larger than the sum of its proper divisors (15760410833).

28065312927 is a wasteful number, since it uses less digits than its factorization.

28065312927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435863 (or 4435860 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 28065312927 in words is "twenty-eight billion, sixty-five million, three hundred twelve thousand, nine hundred twenty-seven".