6576452649 has 18 divisors (see below), whose sum is σ = 10286248830. Its totient is φ = 4047046848.

The previous prime is 6576452633. The next prime is 6576452677. The reversal of 6576452649 is 9462546756.

6576452649 is a `hidden beast` number, since 6 + 5 + 76 + 4 + 526 + 49 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 127238400 + 6449214249 = 11280^2 + 80307^2 .

It is not a de Polignac number, because 6576452649 - 2⁴ = 6576452633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6576452595 and 6576452604.

It is not an unprimeable number, because it can be changed into a prime (6576432649) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2160364 + ... + 2163405.

Almost surely, 2^6576452649 is an apocalyptic number.

It is an amenable number.

6576452649 is a deficient number, since it is larger than the sum of its proper divisors (3709796181).

6576452649 is a wasteful number, since it uses less digits than its factorization.

6576452649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323801 (or 4323785 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The square root of 6576452649 is about 81095.3306239021. The cubic root of 6576452649 is about 1873.5440097286.

The spelling of 6576452649 in words is "six billion, five hundred seventy-six million, four hundred fifty-two thousand, six hundred forty-nine".