28018818017 has 16 divisors (see below), whose sum is σ = 30145471488. Its totient is φ = 25977391440.

The previous prime is 28018818001. The next prime is 28018818041. The reversal of 28018818017 is 71081881082.

It is a cyclic number.

It is not a de Polignac number, because 28018818017 - 2⁴ = 28018818001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28018818067) 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 15 ways as a sum of consecutive naturals, for example, 21428 + ... + 237690.

It is an arithmetic number, because the mean of its divisors is an integer number (1884091968).

Almost surely, 2^28018818017 is an apocalyptic number.

It is an amenable number.

28018818017 is a deficient number, since it is larger than the sum of its proper divisors (2126653471).

28018818017 is a wasteful number, since it uses less digits than its factorization.

28018818017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216460.

The product of its (nonzero) digits is 57344, while the sum is 44.

The spelling of 28018818017 in words is "twenty-eight billion, eighteen million, eight hundred eighteen thousand, seventeen".