6428327769 has 6 divisors (see below), whose sum is σ = 9285362346. Its totient is φ = 4285551840.

The previous prime is 6428327767. The next prime is 6428327771. The reversal of 6428327769 is 9677238246.

It is an interprime number because it is at equal distance from previous prime (6428327767) and next prime (6428327771).

It can be written as a sum of positive squares in only one way, i.e., 4350062025 + 2078265744 = 65955^2 + 45588^2 .

It is not a de Polignac number, because 6428327769 - 2¹ = 6428327767 is a prime.

It is a super-2 number, since 2×6428327769² = 82646795811393034722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6428327767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357129312 + ... + 357129329.

It is an arithmetic number, because the mean of its divisors is an integer number (1547560391).

Almost surely, 2^6428327769 is an apocalyptic number.

It is an amenable number.

6428327769 is a deficient number, since it is larger than the sum of its proper divisors (2857034577).

6428327769 is a wasteful number, since it uses less digits than its factorization.

6428327769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714258647 (or 714258644 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 6428327769 is about 80176.8530749368. The cubic root of 6428327769 is about 1859.3707904672.

The spelling of 6428327769 in words is "six billion, four hundred twenty-eight million, three hundred twenty-seven thousand, seven hundred sixty-nine".