768578378 has 16 divisors (see below), whose sum is σ = 1165272576. Its totient is φ = 380162160.

The previous prime is 768578353. The next prime is 768578389. The reversal of 768578378 is 873875867.

It is a happy number.

It is a super-2 number, since 2×768578378² = 1181425446258221768, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 357575 + ... + 359717.

It is an arithmetic number, because the mean of its divisors is an integer number (72829536).

Almost surely, 2^768578378 is an apocalyptic number.

768578378 is a deficient number, since it is larger than the sum of its proper divisors (396694198).

768578378 is a wasteful number, since it uses less digits than its factorization.

768578378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989.

The product of its digits is 15805440, while the sum is 59.

The square root of 768578378 is about 27723.2461663493. The cubic root of 768578378 is about 916.0012243902.

The spelling of 768578378 in words is "seven hundred sixty-eight million, five hundred seventy-eight thousand, three hundred seventy-eight".