4263564644 has 12 divisors (see below), whose sum is σ = 7461701100. Its totient is φ = 2131650048.

The previous prime is 4263564637. The next prime is 4263564647. The reversal of 4263564644 is 4464653624.

4263564644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2536331044 + 1727233600 = 50362^2 + 41560^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4263564595 and 4263564604.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92072 + ... + 130400.

It is an arithmetic number, because the mean of its divisors is an integer number (621808425).

Almost surely, 2^4263564644 is an apocalyptic number.

It is an amenable number.

4263564644 is a deficient number, since it is larger than the sum of its proper divisors (3198136456).

4263564644 is a wasteful number, since it uses less digits than its factorization.

4263564644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66142 (or 66140 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 44.

The square root of 4263564644 is about 65295.9772420936. The cubic root of 4263564644 is about 1621.5273716807.

The spelling of 4263564644 in words is "four billion, two hundred sixty-three million, five hundred sixty-four thousand, six hundred forty-four".