768906816 has 56 divisors (see below), whose sum is σ = 2036978400. Its totient is φ = 255977472.

The previous prime is 768906811. The next prime is 768906823. The reversal of 768906816 is 618609867.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (768906811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185535 + ... + 189633.

Almost surely, 2^768906816 is an apocalyptic number.

It is an amenable number.

768906816 is an abundant number, since it is smaller than the sum of its proper divisors (1268071584).

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

768906816 is a wasteful number, since it uses less digits than its factorization.

768906816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091 (or 5081 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 768906816 is about 27729.1690463310. The cubic root of 768906816 is about 916.1316846333.

The spelling of 768906816 in words is "seven hundred sixty-eight million, nine hundred six thousand, eight hundred sixteen".