778385068 has 24 divisors (see below), whose sum is σ = 1377582080. Its totient is φ = 384814800.

The previous prime is 778385063. The next prime is 778385077. The reversal of 778385068 is 860583877.

It is not an unprimeable number, because it can be changed into a prime (778385063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131803 + ... + 137581.

Almost surely, 2^778385068 is an apocalyptic number.

It is an amenable number.

778385068 is a deficient number, since it is larger than the sum of its proper divisors (599197012).

778385068 is a wasteful number, since it uses less digits than its factorization.

778385068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157 (or 6155 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 778385068 is about 27899.5531863863. The cubic root of 778385068 is about 919.8806823836.

The spelling of 778385068 in words is "seven hundred seventy-eight million, three hundred eighty-five thousand, sixty-eight".