6891050064866 has 32 divisors (see below), whose sum is σ = 11552836559040. Its totient is φ = 3055490099200.

The previous prime is 6891050064859. The next prime is 6891050064869. The reversal of 6891050064866 is 6684600501986.

It is not an unprimeable number, because it can be changed into a prime (6891050064869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6301250 + ... + 7313538.

It is an arithmetic number, because the mean of its divisors is an integer number (361026142470).

Almost surely, 2^{6891050064866} is an apocalyptic number.

6891050064866 is a deficient number, since it is larger than the sum of its proper divisors (4661786494174).

6891050064866 is a wasteful number, since it uses less digits than its factorization.

6891050064866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019890.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 6891050064866 in words is "six trillion, eight hundred ninety-one billion, fifty million, sixty-four thousand, eight hundred sixty-six".