28450306185 has 32 divisors (see below), whose sum is σ = 52173407232. Its totient is φ = 12968356800.

The previous prime is 28450306177. The next prime is 28450306207. The reversal of 28450306185 is 58160305482.

It is not a de Polignac number, because 28450306185 - 2³ = 28450306177 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353991 + ... + 426860.

It is an arithmetic number, because the mean of its divisors is an integer number (1630418976).

Almost surely, 2^28450306185 is an apocalyptic number.

It is an amenable number.

28450306185 is a deficient number, since it is larger than the sum of its proper divisors (23723101047).

28450306185 is a wasteful number, since it uses less digits than its factorization.

28450306185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781213.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 28450306185 in words is "twenty-eight billion, four hundred fifty million, three hundred six thousand, one hundred eighty-five".