28180093225 has 24 divisors (see below), whose sum is σ = 35329801248. Its totient is φ = 22295078400.

The previous prime is 28180093223. The next prime is 28180093247. The reversal of 28180093225 is 52239008182.

It is not a de Polignac number, because 28180093225 - 2¹ = 28180093223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28180093223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4038990 + ... + 4045960.

It is an arithmetic number, because the mean of its divisors is an integer number (1472075052).

Almost surely, 2^28180093225 is an apocalyptic number.

28180093225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28180093225 is a deficient number, since it is larger than the sum of its proper divisors (7149708023).

28180093225 is a wasteful number, since it uses less digits than its factorization.

28180093225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 28180093225 in words is "twenty-eight billion, one hundred eighty million, ninety-three thousand, two hundred twenty-five".