4245285643 has 2 divisors, whose sum is σ = 4245285644. Its totient is φ = 4245285642.

The previous prime is 4245285641. The next prime is 4245285689. The reversal of 4245285643 is 3465825424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4245285643 - 2¹ = 4245285641 is a prime.

Together with 4245285641, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4245285643.

It is not a weakly prime, because it can be changed into another prime (4245285641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122642821 + 2122642822.

It is an arithmetic number, because the mean of its divisors is an integer number (2122642822).

Almost surely, 2^4245285643 is an apocalyptic number.

4245285643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245285643 is an equidigital number, since it uses as much as digits as its factorization.

4245285643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 43.

The square root of 4245285643 is about 65155.8565518097. The cubic root of 4245285643 is about 1619.2067501609.

The spelling of 4245285643 in words is "four billion, two hundred forty-five million, two hundred eighty-five thousand, six hundred forty-three".