28183265187 has 48 divisors (see below), whose sum is σ = 47870194176. Its totient is φ = 14434358400.

The previous prime is 28183265167. The next prime is 28183265221. The reversal of 28183265187 is 78156238182.

It is not a de Polignac number, because 28183265187 - 2⁷ = 28183265059 is a prime.

It is a super-3 number, since 3×28183265187³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (28183265167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102303 + ... + 258519.

It is an arithmetic number, because the mean of its divisors is an integer number (997295712).

Almost surely, 2^28183265187 is an apocalyptic number.

28183265187 is a deficient number, since it is larger than the sum of its proper divisors (19686928989).

28183265187 is a wasteful number, since it uses less digits than its factorization.

28183265187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156320 (or 156309 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The spelling of 28183265187 in words is "twenty-eight billion, one hundred eighty-three million, two hundred sixty-five thousand, one hundred eighty-seven".