4245643712 has 14 divisors (see below), whose sum is σ = 8424949368. Its totient is φ = 2122821824.

The previous prime is 4245643711. The next prime is 4245643757. The reversal of 4245643712 is 2173465424.

It is a happy number.

4245643712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245643711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33169028 + ... + 33169155.

Almost surely, 2^4245643712 is an apocalyptic number.

It is an amenable number.

4245643712 is a deficient number, since it is larger than the sum of its proper divisors (4179305656).

4245643712 is an equidigital number, since it uses as much as digits as its factorization.

4245643712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66338195 (or 66338185 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 4245643712 is about 65158.6042821668. The cubic root of 4245643712 is about 1619.2522729275.

It can be divided in two parts, 42456 and 43712, that added together give a palindrome (86168).

The spelling of 4245643712 in words is "four billion, two hundred forty-five million, six hundred forty-three thousand, seven hundred twelve".