28585850305 has 8 divisors (see below), whose sum is σ = 34716310272. Its totient is φ = 22593153648.

The previous prime is 28585850287. The next prime is 28585850309. The reversal of 28585850305 is 50305858582.

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 28585850305 - 2⁹ = 28585849793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28585850309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34440369 + ... + 34441198.

It is an arithmetic number, because the mean of its divisors is an integer number (4339538784).

Almost surely, 2^28585850305 is an apocalyptic number.

It is an amenable number.

28585850305 is a deficient number, since it is larger than the sum of its proper divisors (6130459967).

28585850305 is an equidigital number, since it uses as much as digits as its factorization.

28585850305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68881655.

The product of its (nonzero) digits is 1920000, while the sum is 49.

The spelling of 28585850305 in words is "twenty-eight billion, five hundred eighty-five million, eight hundred fifty thousand, three hundred five".