11784556227839 has 12 divisors (see below), whose sum is σ = 12121981105200. Its totient is φ = 11456212521600.

The previous prime is 11784556227823. The next prime is 11784556227869. The reversal of 11784556227839 is 93872265548711.

It is not a de Polignac number, because 11784556227839 - 2⁴ = 11784556227823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11784556227869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12001739 + ... + 12946460.

It is an arithmetic number, because the mean of its divisors is an integer number (1010165092100).

Almost surely, 2^{11784556227839} is an apocalyptic number.

11784556227839 is a deficient number, since it is larger than the sum of its proper divisors (337424877361).

11784556227839 is an equidigital number, since it uses as much as digits as its factorization.

11784556227839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24948562 (or 24948521 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 68.

The spelling of 11784556227839 in words is "eleven trillion, seven hundred eighty-four billion, five hundred fifty-six million, two hundred twenty-seven thousand, eight hundred thirty-nine".