28114181845 has 16 divisors (see below), whose sum is σ = 33798323520. Its totient is φ = 22450521600.

The previous prime is 28114181743. The next prime is 28114181857. The reversal of 28114181845 is 54818141182.

It is not a de Polignac number, because 28114181845 - 2⁷ = 28114181717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9243525 + ... + 9246565.

It is an arithmetic number, because the mean of its divisors is an integer number (2112395220).

Almost surely, 2^28114181845 is an apocalyptic number.

It is an amenable number.

28114181845 is a deficient number, since it is larger than the sum of its proper divisors (5684141675).

28114181845 is a wasteful number, since it uses less digits than its factorization.

28114181845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796.

The product of its digits is 81920, while the sum is 43.

The spelling of 28114181845 in words is "twenty-eight billion, one hundred fourteen million, one hundred eighty-one thousand, eight hundred forty-five".