4512781163 has 4 divisors (see below), whose sum is σ = 4923034008. Its totient is φ = 4102528320.

The previous prime is 4512781129. The next prime is 4512781177. The reversal of 4512781163 is 3611872154.

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

It is not a de Polignac number, because 4512781163 - 2²⁴ = 4496003947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4512781123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205126406 + ... + 205126427.

It is an arithmetic number, because the mean of its divisors is an integer number (1230758502).

Almost surely, 2^4512781163 is an apocalyptic number.

4512781163 is a deficient number, since it is larger than the sum of its proper divisors (410252845).

4512781163 is a wasteful number, since it uses less digits than its factorization.

4512781163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410252844.

The product of its digits is 40320, while the sum is 38.

The square root of 4512781163 is about 67177.2369407971. The cubic root of 4512781163 is about 1652.5252014103.

Subtracting from 4512781163 its reverse (3611872154), we obtain a palindrome (900909009).

The spelling of 4512781163 in words is "four billion, five hundred twelve million, seven hundred eighty-one thousand, one hundred sixty-three".