6774434377 has 4 divisors (see below), whose sum is σ = 6957527236. Its totient is φ = 6591341520.

The previous prime is 6774434369. The next prime is 6774434389. The reversal of 6774434377 is 7734344776.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5858524681 + 915909696 = 76541^2 + 30264^2 .

It is a cyclic number.

It is not a de Polignac number, because 6774434377 - 2³ = 6774434369 is a prime.

It is a super-2 number, since 2×6774434377² = 91785922256558756258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6774434077) 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, 91546374 + ... + 91546447.

It is an arithmetic number, because the mean of its divisors is an integer number (1739381809).

Almost surely, 2^6774434377 is an apocalyptic number.

It is an amenable number.

6774434377 is a deficient number, since it is larger than the sum of its proper divisors (183092859).

6774434377 is a wasteful number, since it uses less digits than its factorization.

6774434377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183092858.

The product of its digits is 8297856, while the sum is 52.

The square root of 6774434377 is about 82306.9521790231. The cubic root of 6774434377 is about 1892.1592277087.

The spelling of 6774434377 in words is "six billion, seven hundred seventy-four million, four hundred thirty-four thousand, three hundred seventy-seven".