4263564645 has 36 divisors (see below), whose sum is σ = 7448371788. Its totient is φ = 2256134400.

The previous prime is 4263564637. The next prime is 4263564647. The reversal of 4263564645 is 5464653624.

It is a happy number.

4263564645 is a `hidden beast` number, since 4 + 2 + 635 + 6 + 4 + 6 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1364711364 + 2898853281 = 36942^2 + 53841^2 .

It is not a de Polignac number, because 4263564645 - 2³ = 4263564637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4263564645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4263564647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 769485 + ... + 775005.

Almost surely, 2^4263564645 is an apocalyptic number.

4263564645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4263564645 is a deficient number, since it is larger than the sum of its proper divisors (3184807143).

4263564645 is a wasteful number, since it uses less digits than its factorization.

4263564645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5794 (or 5660 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The square root of 4263564645 is about 65295.9772497510. The cubic root of 4263564645 is about 1621.5273718075.

The spelling of 4263564645 in words is "four billion, two hundred sixty-three million, five hundred sixty-four thousand, six hundred forty-five".