28162000281 has 16 divisors (see below), whose sum is σ = 37658225600. Its totient is φ = 18720281088.

The previous prime is 28162000259. The next prime is 28162000289. The reversal of 28162000281 is 18200026182.

It is not a de Polignac number, because 28162000281 - 2⁹ = 28161999769 is a prime.

It is a super-2 number, since 2×28162000281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28162000289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158305 + ... + 2171313.

It is an arithmetic number, because the mean of its divisors is an integer number (2353639100).

Almost surely, 2^28162000281 is an apocalyptic number.

It is an amenable number.

28162000281 is a deficient number, since it is larger than the sum of its proper divisors (9496225319).

28162000281 is a wasteful number, since it uses less digits than its factorization.

28162000281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15048.

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 28162000281 in words is "twenty-eight billion, one hundred sixty-two million, two hundred eighty-one", and thus it is an aban number.