6866111043 has 192 divisors, whose sum is σ = 12398690304. Its totient is φ = 3755808000.

The previous prime is 6866111033. The next prime is 6866111069. The reversal of 6866111043 is 3401116686.

It is a Cunningham number, because it is equal to 82862²-1.

It is not a de Polignac number, because 6866111043 - 2⁸ = 6866110787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6866110989 and 6866111007.

It is not an unprimeable number, because it can be changed into a prime (6866111033) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 146087446 + ... + 146087492.

It is an arithmetic number, because the mean of its divisors is an integer number (64576512).

Almost surely, 2^6866111043 is an apocalyptic number.

6866111043 is a deficient number, since it is larger than the sum of its proper divisors (5532579261).

6866111043 is a wasteful number, since it uses less digits than its factorization.

6866111043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 6866111043 is about 82861.9999939659. Note that the first 5 decimals coincide. The cubic root of 6866111043 is about 1900.6563792212.

The spelling of 6866111043 in words is "six billion, eight hundred sixty-six million, one hundred eleven thousand, forty-three".