6866578012 has 12 divisors (see below), whose sum is σ = 13733156080. Its totient is φ = 2942819136.

The previous prime is 6866577953. The next prime is 6866578031. The reversal of 6866578012 is 2108756686.

6866578012 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122617437 + ... + 122617492.

Almost surely, 2^6866578012 is an apocalyptic number.

It is an amenable number.

6866578012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6866578012 is a wasteful number, since it uses less digits than its factorization.

6866578012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245234940 (or 245234938 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 6866578012 is about 82864.8176972592. The cubic root of 6866578012 is about 1900.6994665663.

The spelling of 6866578012 in words is "six billion, eight hundred sixty-six million, five hundred seventy-eight thousand, twelve".