75216868 has 12 divisors (see below), whose sum is σ = 132795180. Its totient is φ = 37275392.

The previous prime is 75216859. The next prime is 75216871. The reversal of 75216868 is 86861257.

It can be written as a sum of positive squares in 2 ways, for example, as 2490084 + 72726784 = 1578^2 + 8528^2 .

It is an unprimeable number.

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, 82753 + ... + 83656.

It is an arithmetic number, because the mean of its divisors is an integer number (11066265).

Almost surely, 2^75216868 is an apocalyptic number.

It is an amenable number.

75216868 is a deficient number, since it is larger than the sum of its proper divisors (57578312).

75216868 is a wasteful number, since it uses less digits than its factorization.

75216868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166526 (or 166524 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 75216868 is about 8672.7658794643. The cubic root of 75216868 is about 422.1224160626.

The spelling of 75216868 in words is "seventy-five million, two hundred sixteen thousand, eight hundred sixty-eight".