28028000030305 has 8 divisors (see below), whose sum is σ = 36691200039744. Its totient is φ = 20384000022000.

The previous prime is 28028000030293. The next prime is 28028000030339. The reversal of 28028000030305 is 50303000082082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28028000030305 - 2⁹ = 28028000029793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254800000221 + ... + 254800000330.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400004968).

Almost surely, 2^{28028000030305} is an apocalyptic number.

It is an amenable number.

28028000030305 is a deficient number, since it is larger than the sum of its proper divisors (8663200009439).

28028000030305 is a wasteful number, since it uses less digits than its factorization.

28028000030305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509600000567.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 28028000030305 in words is "twenty-eight trillion, twenty-eight billion, thirty thousand, three hundred five".