2028128027 has 4 divisors (see below), whose sum is σ = 2082942336. Its totient is φ = 1973313720.

The previous prime is 2028128023. The next prime is 2028128057. The reversal of 2028128027 is 7208218202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2028128027 - 2² = 2028128023 is a prime.

It is a super-2 number, since 2×2028128027² = 8226606587805825458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2028127984 and 2028128002.

It is not an unprimeable number, because it can be changed into a prime (2028128023) 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 3 ways as a sum of consecutive naturals, for example, 27407099 + ... + 27407172.

It is an arithmetic number, because the mean of its divisors is an integer number (520735584).

Almost surely, 2^2028128027 is an apocalyptic number.

2028128027 is a deficient number, since it is larger than the sum of its proper divisors (54814309).

2028128027 is an equidigital number, since it uses as much as digits as its factorization.

2028128027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54814308.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 2028128027 is about 45034.7424440287. The cubic root of 2028128027 is about 1265.8000900168.

The spelling of 2028128027 in words is "two billion, twenty-eight million, one hundred twenty-eight thousand, twenty-seven".