6775780671 has 24 divisors (see below), whose sum is σ = 10776789504. Its totient is φ = 4068148560.

The previous prime is 6775780643. The next prime is 6775780681. The reversal of 6775780671 is 1760875776.

6775780671 is a `hidden beast` number, since 6 + 7 + 7 + 578 + 0 + 67 + 1 = 666.

It is not a de Polignac number, because 6775780671 - 2¹¹ = 6775778623 is a prime.

It is a super-2 number, since 2×6775780671² = 91822407402994420482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6775780621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309231 + ... + 330416.

It is an arithmetic number, because the mean of its divisors is an integer number (449032896).

Almost surely, 2^6775780671 is an apocalyptic number.

6775780671 is a deficient number, since it is larger than the sum of its proper divisors (4001008833).

6775780671 is a wasteful number, since it uses less digits than its factorization.

6775780671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639771 (or 639768 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The square root of 6775780671 is about 82315.1302677703. The cubic root of 6775780671 is about 1892.2845633329.

The spelling of 6775780671 in words is "six billion, seven hundred seventy-five million, seven hundred eighty thousand, six hundred seventy-one".