6812012866 has 4 divisors (see below), whose sum is σ = 10218019302. Its totient is φ = 3406006432.

The previous prime is 6812012827. The next prime is 6812012917. The reversal of 6812012866 is 6682102186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5059334641 + 1752678225 = 71129^2 + 41865^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703003215 + ... + 1703003218.

Almost surely, 2^6812012866 is an apocalyptic number.

6812012866 is a deficient number, since it is larger than the sum of its proper divisors (3406006436).

6812012866 is a wasteful number, since it uses less digits than its factorization.

6812012866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406006435.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 6812012866 is about 82534.9190706576. The cubic root of 6812012866 is about 1895.6514461388.

The spelling of 6812012866 in words is "six billion, eight hundred twelve million, twelve thousand, eight hundred sixty-six".