6774404165 has 4 divisors (see below), whose sum is σ = 8129285004. Its totient is φ = 5419523328.

The previous prime is 6774404101. The next prime is 6774404167. The reversal of 6774404165 is 5614044776.

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 986085604 + 5788318561 = 31402^2 + 76081^2 .

It is a cyclic number.

It is not a de Polignac number, because 6774404165 - 2⁶ = 6774404101 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 (6774404167) 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, 677440412 + ... + 677440421.

It is an arithmetic number, because the mean of its divisors is an integer number (2032321251).

Almost surely, 2^6774404165 is an apocalyptic number.

It is an amenable number.

6774404165 is a deficient number, since it is larger than the sum of its proper divisors (1354880839).

6774404165 is a wasteful number, since it uses less digits than its factorization.

6774404165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354880838.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 6774404165 is about 82306.7686463270. The cubic root of 6774404165 is about 1892.1564148785.

The spelling of 6774404165 in words is "six billion, seven hundred seventy-four million, four hundred four thousand, one hundred sixty-five".