4528072168 has 16 divisors (see below), whose sum is σ = 8544214980. Its totient is φ = 2249614848.

The previous prime is 4528072163. The next prime is 4528072181. The reversal of 4528072168 is 8612708254.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4285273444 + 242798724 = 65462^2 + 15582^2 .

It is not an unprimeable number, because it can be changed into a prime (4528072163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801321 + ... + 1803832.

Almost surely, 2^4528072168 is an apocalyptic number.

It is an amenable number.

4528072168 is a deficient number, since it is larger than the sum of its proper divisors (4016142812).

4528072168 is a wasteful number, since it uses less digits than its factorization.

4528072168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605316 (or 3605312 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 4528072168 is about 67290.9516056951. The cubic root of 4528072168 is about 1654.3895568759.

The spelling of 4528072168 in words is "four billion, five hundred twenty-eight million, seventy-two thousand, one hundred sixty-eight".