11811743827 has 8 divisors (see below), whose sum is σ = 12734856176. Its totient is φ = 10890705312.

The previous prime is 11811743821. The next prime is 11811743857. The reversal of 11811743827 is 72834711811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11811743827 - 2¹¹ = 11811741779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11811743821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506613 + ... + 529414.

It is an arithmetic number, because the mean of its divisors is an integer number (1591857022).

Almost surely, 2^11811743827 is an apocalyptic number.

11811743827 is a deficient number, since it is larger than the sum of its proper divisors (923112349).

11811743827 is a wasteful number, since it uses less digits than its factorization.

11811743827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036917.

The product of its digits is 75264, while the sum is 43.

The spelling of 11811743827 in words is "eleven billion, eight hundred eleven million, seven hundred forty-three thousand, eight hundred twenty-seven".