6866111044 has 27 divisors (see below), whose sum is σ = 13015161117. Its totient is φ = 3167979984.

The previous prime is 6866111033. The next prime is 6866111069. The reversal of 6866111044 is 4401116686.

The square root of 6866111044 is 82862.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1015696900 + 5850414144 = 31870^2 + 76488^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6866110994 and 6866111012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2152819 + ... + 2156005.

Almost surely, 2^6866111044 is an apocalyptic number.

6866111044 is the 82862-nd square number.

It is an amenable number.

6866111044 is a deficient number, since it is larger than the sum of its proper divisors (6149050073).

6866111044 is an equidigital number, since it uses as much as digits as its factorization.

6866111044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The cubic root of 6866111044 is about 1900.6563793134.

The spelling of 6866111044 in words is "six billion, eight hundred sixty-six million, one hundred eleven thousand, forty-four".