768674565 has 12 divisors (see below), whose sum is σ = 1332369324. Its totient is φ = 409959744.

The previous prime is 768674563. The next prime is 768674573. The reversal of 768674565 is 565476867.

768674565 is a `hidden beast` number, since 7 + 6 + 8 + 6 + 74 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 450373284 + 318301281 = 21222^2 + 17841^2 .

It is not a de Polignac number, because 768674565 - 2¹ = 768674563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768674563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8540784 + ... + 8540873.

It is an arithmetic number, because the mean of its divisors is an integer number (111030777).

Almost surely, 2^768674565 is an apocalyptic number.

It is an amenable number.

768674565 is a deficient number, since it is larger than the sum of its proper divisors (563694759).

768674565 is a wasteful number, since it uses less digits than its factorization.

768674565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17081668 (or 17081665 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The square root of 768674565 is about 27724.9808836724. The cubic root of 768674565 is about 916.0394350820.

The spelling of 768674565 in words is "seven hundred sixty-eight million, six hundred seventy-four thousand, five hundred sixty-five".