78466568 has 16 divisors (see below), whose sum is σ = 147744000. Its totient is φ = 39068176.

The previous prime is 78466541. The next prime is 78466571. The reversal of 78466568 is 86566487.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18608 + ... + 22431.

It is an arithmetic number, because the mean of its divisors is an integer number (9234000).

Almost surely, 2^78466568 is an apocalyptic number.

It is an amenable number.

78466568 is a deficient number, since it is larger than the sum of its proper divisors (69277432).

78466568 is a wasteful number, since it uses less digits than its factorization.

78466568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41284 (or 41280 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 78466568 is about 8858.1356955061. The cubic root of 78466568 is about 428.1160921868.

The spelling of 78466568 in words is "seventy-eight million, four hundred sixty-six thousand, five hundred sixty-eight".