18026416728777 has 16 divisors (see below), whose sum is σ = 24048517376000. Its totient is φ = 12010964260752.

The previous prime is 18026416728751. The next prime is 18026416728797. The reversal of 18026416728777 is 77782761462081.

It is not a de Polignac number, because 18026416728777 - 2³⁰ = 18025342986953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18026416728707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131523678 + ... + 131660664.

It is an arithmetic number, because the mean of its divisors is an integer number (1503032336000).

Almost surely, 2^{18026416728777} is an apocalyptic number.

It is an amenable number.

18026416728777 is a deficient number, since it is larger than the sum of its proper divisors (6022100647223).

18026416728777 is a wasteful number, since it uses less digits than its factorization.

18026416728777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160932.

The product of its (nonzero) digits is 88510464, while the sum is 66.

The spelling of 18026416728777 in words is "eighteen trillion, twenty-six billion, four hundred sixteen million, seven hundred twenty-eight thousand, seven hundred seventy-seven".