75616768 has 20 divisors (see below), whose sum is σ = 151086870. Its totient is φ = 37808128.

The previous prime is 75616763. The next prime is 75616769. The reversal of 75616768 is 86761657.

It can be written as a sum of positive squares in only one way, i.e., 75481344 + 135424 = 8688^2 + 368^2 .

It is not an unprimeable number, because it can be changed into a prime (75616763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73333 + ... + 74356.

Almost surely, 2^75616768 is an apocalyptic number.

It is an amenable number.

75616768 is a deficient number, since it is larger than the sum of its proper divisors (75470102).

75616768 is an equidigital number, since it uses as much as digits as its factorization.

75616768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147707 (or 147691 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 75616768 is about 8695.7902458603. The cubic root of 75616768 is about 422.8691832809.

The spelling of 75616768 in words is "seventy-five million, six hundred sixteen thousand, seven hundred sixty-eight".