6740776771 has 4 divisors (see below), whose sum is σ = 6741212632. Its totient is φ = 6740340912.

The previous prime is 6740776769. The next prime is 6740776919. The reversal of 6740776771 is 1776770476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6740776771 - 2¹ = 6740776769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6740776271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193845 + ... + 225958.

It is an arithmetic number, because the mean of its divisors is an integer number (1685303158).

Almost surely, 2^6740776771 is an apocalyptic number.

6740776771 is a deficient number, since it is larger than the sum of its proper divisors (435861).

6740776771 is a wasteful number, since it uses less digits than its factorization.

6740776771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435860.

The product of its (nonzero) digits is 2420208, while the sum is 52.

The square root of 6740776771 is about 82102.2336541461. The cubic root of 6740776771 is about 1889.0204017185.

The spelling of 6740776771 in words is "six billion, seven hundred forty million, seven hundred seventy-six thousand, seven hundred seventy-one".