768168305 has 4 divisors (see below), whose sum is σ = 921801972. Its totient is φ = 614534640.

The previous prime is 768168293. The next prime is 768168311. The reversal of 768168305 is 503861867.

768168305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168065296 + 600103009 = 12964^2 + 24497^2 .

It is not a de Polignac number, because 768168305 - 2²⁶ = 701059441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76816826 + ... + 76816835.

It is an arithmetic number, because the mean of its divisors is an integer number (230450493).

Almost surely, 2^768168305 is an apocalyptic number.

It is an amenable number.

768168305 is a deficient number, since it is larger than the sum of its proper divisors (153633667).

768168305 is a wasteful number, since it uses less digits than its factorization.

768168305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153633666.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 768168305 is about 27715.8493465382. The cubic root of 768168305 is about 915.8382853825.

The spelling of 768168305 in words is "seven hundred sixty-eight million, one hundred sixty-eight thousand, three hundred five".