28289852401 has 16 divisors (see below), whose sum is σ = 29007820800. Its totient is φ = 27581811840.

The previous prime is 28289852389. The next prime is 28289852407. The reversal of 28289852401 is 10425898282.

It is a cyclic number.

It is not a de Polignac number, because 28289852401 - 2¹¹ = 28289850353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28289852407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199056 + ... + 3207886.

It is an arithmetic number, because the mean of its divisors is an integer number (1812988800).

Almost surely, 2^28289852401 is an apocalyptic number.

It is an amenable number.

28289852401 is a deficient number, since it is larger than the sum of its proper divisors (717968399).

28289852401 is a wasteful number, since it uses less digits than its factorization.

28289852401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9384.

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 28289852401 in words is "twenty-eight billion, two hundred eighty-nine million, eight hundred fifty-two thousand, four hundred one".