4251320163 has 12 divisors (see below), whose sum is σ = 6352547760. Its totient is φ = 2736481776.

The previous prime is 4251320149. The next prime is 4251320201. The reversal of 4251320163 is 3610231524.

It is not a de Polignac number, because 4251320163 - 2¹⁰ = 4251319139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4251320123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8144031 + ... + 8144552.

It is an arithmetic number, because the mean of its divisors is an integer number (529378980).

Almost surely, 2^4251320163 is an apocalyptic number.

4251320163 is a deficient number, since it is larger than the sum of its proper divisors (2101227597).

4251320163 is a wasteful number, since it uses less digits than its factorization.

4251320163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16288618 (or 16288615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4251320163 is about 65202.1484538662. The cubic root of 4251320163 is about 1619.9736015360.

Adding to 4251320163 its reverse (3610231524), we get a palindrome (7861551687).

The spelling of 4251320163 in words is "four billion, two hundred fifty-one million, three hundred twenty thousand, one hundred sixty-three".