6782866077 has 16 divisors (see below), whose sum is σ = 9752828288. Its totient is φ = 4168359360.

The previous prime is 6782866049. The next prime is 6782866087. The reversal of 6782866077 is 7706682876.

It is not a de Polignac number, because 6782866077 - 2⁷ = 6782865949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6782866087) 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, 90049 + ... + 147222.

It is an arithmetic number, because the mean of its divisors is an integer number (609551768).

Almost surely, 2^6782866077 is an apocalyptic number.

It is an amenable number.

6782866077 is a deficient number, since it is larger than the sum of its proper divisors (2969962211).

6782866077 is a wasteful number, since it uses less digits than its factorization.

6782866077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238020.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The square root of 6782866077 is about 82358.1573191144. The cubic root of 6782866077 is about 1892.9439182883.

The spelling of 6782866077 in words is "six billion, seven hundred eighty-two million, eight hundred sixty-six thousand, seventy-seven".