6866111139 has 8 divisors (see below), whose sum is σ = 9304894032. Its totient is φ = 4502367840.

The previous prime is 6866111117. The next prime is 6866111171. The reversal of 6866111139 is 9311116686.

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

It is not a de Polignac number, because 6866111139 - 2¹¹ = 6866109091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6866111139.

It is not an unprimeable number, because it can be changed into a prime (6866111839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18759684 + ... + 18760049.

It is an arithmetic number, because the mean of its divisors is an integer number (1163111754).

Almost surely, 2^6866111139 is an apocalyptic number.

6866111139 is a deficient number, since it is larger than the sum of its proper divisors (2438782893).

6866111139 is a wasteful number, since it uses less digits than its factorization.

6866111139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37519797.

The product of its digits is 46656, while the sum is 42.

The square root of 6866111139 is about 82862.0005732423. Note that the first 3 decimals coincide. The cubic root of 6866111139 is about 1900.6563880793.

It can be divided in two parts, 68661 and 11139, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 6866111139 in words is "six billion, eight hundred sixty-six million, one hundred eleven thousand, one hundred thirty-nine".