28045146289 has 8 divisors (see below), whose sum is σ = 29736692640. Its totient is φ = 26375148576.

The previous prime is 28045146193. The next prime is 28045146293. The reversal of 28045146289 is 98264154082.

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 28045146289 - 2⁷ = 28045146161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28045147289) 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, 5384479 + ... + 5389684.

It is an arithmetic number, because the mean of its divisors is an integer number (3717086580).

Almost surely, 2^28045146289 is an apocalyptic number.

It is an amenable number.

28045146289 is a deficient number, since it is larger than the sum of its proper divisors (1691546351).

28045146289 is a wasteful number, since it uses less digits than its factorization.

28045146289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10774319.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 28045146289 in words is "twenty-eight billion, forty-five million, one hundred forty-six thousand, two hundred eighty-nine".