4528570645 has 4 divisors (see below), whose sum is σ = 5434284780. Its totient is φ = 3622856512.

The previous prime is 4528570639. The next prime is 4528570691. The reversal of 4528570645 is 5460758254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1649496996 + 2879073649 = 40614^2 + 53657^2 .

It is a cyclic number.

It is not a de Polignac number, because 4528570645 - 2¹³ = 4528562453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4528570595 and 4528570604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452857060 + ... + 452857069.

It is an arithmetic number, because the mean of its divisors is an integer number (1358571195).

Almost surely, 2^4528570645 is an apocalyptic number.

It is an amenable number.

4528570645 is a deficient number, since it is larger than the sum of its proper divisors (905714135).

4528570645 is an equidigital number, since it uses as much as digits as its factorization.

4528570645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905714134.

The product of its (nonzero) digits is 1344000, while the sum is 46.

The square root of 4528570645 is about 67294.6553969927. The cubic root of 4528570645 is about 1654.4502629816.

The spelling of 4528570645 in words is "four billion, five hundred twenty-eight million, five hundred seventy thousand, six hundred forty-five".