28340171827 has 8 divisors (see below), whose sum is σ = 32735171952. Its totient is φ = 24248275200.

The previous prime is 28340171777. The next prime is 28340171837. The reversal of 28340171827 is 72817104382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28340171827 - 2²³ = 28331783219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28340171837) 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 7 ways as a sum of consecutive naturals, for example, 75775674 + ... + 75776047.

It is an arithmetic number, because the mean of its divisors is an integer number (4091896494).

Almost surely, 2^28340171827 is an apocalyptic number.

28340171827 is a deficient number, since it is larger than the sum of its proper divisors (4395000125).

28340171827 is a wasteful number, since it uses less digits than its factorization.

28340171827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151551749.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 28340171827 in words is "twenty-eight billion, three hundred forty million, one hundred seventy-one thousand, eight hundred twenty-seven".