28075325305 has 16 divisors (see below), whose sum is σ = 34902779904. Its totient is φ = 21657234240.

The previous prime is 28075325303. The next prime is 28075325321. The reversal of 28075325305 is 50352357082.

It is not a de Polignac number, because 28075325305 - 2¹ = 28075325303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28075325303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284017 + ... + 369886.

It is an arithmetic number, because the mean of its divisors is an integer number (2181423744).

Almost surely, 2^28075325305 is an apocalyptic number.

It is an amenable number.

28075325305 is a deficient number, since it is larger than the sum of its proper divisors (6827454599).

28075325305 is a wasteful number, since it uses less digits than its factorization.

28075325305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654216.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 28075325305 in words is "twenty-eight billion, seventy-five million, three hundred twenty-five thousand, three hundred five".