6789081977 has 4 divisors (see below), whose sum is σ = 6789550080. Its totient is φ = 6788613876.

The previous prime is 6789081899. The next prime is 6789082007. The reversal of 6789081977 is 7791809876.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6789081977 - 2¹⁶ = 6789016441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6789084977) by changing a digit.

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, 211577 + ... + 241542.

It is an arithmetic number, because the mean of its divisors is an integer number (1697387520).

Almost surely, 2^6789081977 is an apocalyptic number.

It is an amenable number.

6789081977 is a deficient number, since it is larger than the sum of its proper divisors (468103).

6789081977 is a wasteful number, since it uses less digits than its factorization.

6789081977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468102.

The product of its (nonzero) digits is 10668672, while the sum is 62.

The square root of 6789081977 is about 82395.8856800508. The cubic root of 6789081977 is about 1893.5219805962.

The spelling of 6789081977 in words is "six billion, seven hundred eighty-nine million, eighty-one thousand, nine hundred seventy-seven".