4245221763 has 12 divisors (see below), whose sum is σ = 6178797768. Its totient is φ = 2808542880.

The previous prime is 4245221707. The next prime is 4245221789. The reversal of 4245221763 is 3671225424.

4245221763 is a `hidden beast` number, since 424 + 5 + 221 + 7 + 6 + 3 = 666.

4245221763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4245221763 - 2¹² = 4245217667 is a prime.

It is a super-3 number, since 3×4245221763³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4245221363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1799170 + ... + 1801527.

It is an arithmetic number, because the mean of its divisors is an integer number (514899814).

Almost surely, 2^4245221763 is an apocalyptic number.

4245221763 is a deficient number, since it is larger than the sum of its proper divisors (1933576005).

4245221763 is a wasteful number, since it uses less digits than its factorization.

4245221763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600834 (or 3600831 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 4245221763 is about 65155.3663407704. The cubic root of 4245221763 is about 1619.1986285680.

The spelling of 4245221763 in words is "four billion, two hundred forty-five million, two hundred twenty-one thousand, seven hundred sixty-three".