6697328769 has 6 divisors (see below), whose sum is σ = 9673919346. Its totient is φ = 4464885840.

The previous prime is 6697328767. The next prime is 6697328801. The reversal of 6697328769 is 9678237966.

It can be written as a sum of positive squares in only one way, i.e., 3643329600 + 3053999169 = 60360^2 + 55263^2 .

It is not a de Polignac number, because 6697328769 - 2¹ = 6697328767 is a prime.

It is a super-2 number, since 2×6697328769² = 89708425280150110722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6697328767) 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, 372073812 + ... + 372073829.

It is an arithmetic number, because the mean of its divisors is an integer number (1612319891).

Almost surely, 2^6697328769 is an apocalyptic number.

It is an amenable number.

6697328769 is a deficient number, since it is larger than the sum of its proper divisors (2976590577).

6697328769 is a wasteful number, since it uses less digits than its factorization.

6697328769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744147647 (or 744147644 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The square root of 6697328769 is about 81837.2089516743. The cubic root of 6697328769 is about 1884.9530596890.

The spelling of 6697328769 in words is "six billion, six hundred ninety-seven million, three hundred twenty-eight thousand, seven hundred sixty-nine".