6766845861 has 16 divisors (see below), whose sum is σ = 9416917440. Its totient is φ = 4318154880.

The previous prime is 6766845859. The next prime is 6766845907. The reversal of 6766845861 is 1685486676.

It is not a de Polignac number, because 6766845861 - 2¹ = 6766845859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6766845851) 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, 512491 + ... + 525528.

It is an arithmetic number, because the mean of its divisors is an integer number (588557340).

Almost surely, 2^6766845861 is an apocalyptic number.

It is an amenable number.

6766845861 is a deficient number, since it is larger than the sum of its proper divisors (2650071579).

6766845861 is a wasteful number, since it uses less digits than its factorization.

6766845861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038116.

The product of its digits is 11612160, while the sum is 57.

The square root of 6766845861 is about 82260.8403859333. The cubic root of 6766845861 is about 1891.4524506062.

The spelling of 6766845861 in words is "six billion, seven hundred sixty-six million, eight hundred forty-five thousand, eight hundred sixty-one".