768307578 has 16 divisors (see below), whose sum is σ = 1542330720. Its totient is φ = 255149936.

The previous prime is 768307567. The next prime is 768307607. The reversal of 768307578 is 875703867.

It is a self number, because there is not a number n which added to its sum of digits gives 768307578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236400 + ... + 239627.

It is an arithmetic number, because the mean of its divisors is an integer number (96395670).

Almost surely, 2^768307578 is an apocalyptic number.

768307578 is an abundant number, since it is smaller than the sum of its proper divisors (774023142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768307578 is a wasteful number, since it uses less digits than its factorization.

768307578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476301.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The square root of 768307578 is about 27718.3617481265. The cubic root of 768307578 is about 915.8936308221.

The spelling of 768307578 in words is "seven hundred sixty-eight million, three hundred seven thousand, five hundred seventy-eight".