18026416728782 has 32 divisors (see below), whose sum is σ = 34533977958144. Its totient is φ = 6851979748800.

The previous prime is 18026416728751. The next prime is 18026416728797. The reversal of 18026416728782 is 28782761462081.

It is a happy number.

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, 1427489468 + ... + 1427502095.

It is an arithmetic number, because the mean of its divisors is an integer number (1079186811192).

Almost surely, 2^{18026416728782} is an apocalyptic number.

18026416728782 is a deficient number, since it is larger than the sum of its proper divisors (16507561229362).

18026416728782 is a wasteful number, since it uses less digits than its factorization.

18026416728782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854991624.

The product of its (nonzero) digits is 28901376, while the sum is 62.

The spelling of 18026416728782 in words is "eighteen trillion, twenty-six billion, four hundred sixteen million, seven hundred twenty-eight thousand, seven hundred eighty-two".