18843228834279 has 32 divisors (see below), whose sum is σ = 25921079990784. Its totient is φ = 12168859651200.

The previous prime is 18843228834191. The next prime is 18843228834289. The reversal of 18843228834279 is 97243882234881.

It is not a de Polignac number, because 18843228834279 - 2²⁰ = 18843227785703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18843228834289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11151589 + ... + 12729665.

It is an arithmetic number, because the mean of its divisors is an integer number (810033749712).

Almost surely, 2^{18843228834279} is an apocalyptic number.

18843228834279 is a deficient number, since it is larger than the sum of its proper divisors (7077851156505).

18843228834279 is a wasteful number, since it uses less digits than its factorization.

18843228834279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578887.

The product of its digits is 297271296, while the sum is 69.

The spelling of 18843228834279 in words is "eighteen trillion, eight hundred forty-three billion, two hundred twenty-eight million, eight hundred thirty-four thousand, two hundred seventy-nine".