768616994478 has 32 divisors (see below), whose sum is σ = 1595677870080. Its totient is φ = 246643745760.

The previous prime is 768616994447. The next prime is 768616994489. The reversal of 768616994478 is 874499616867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22323718 + ... + 22358121.

It is an arithmetic number, because the mean of its divisors is an integer number (49864933440).

Almost surely, 2^768616994478 is an apocalyptic number.

768616994478 is an abundant number, since it is smaller than the sum of its proper divisors (827060875602).

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

768616994478 is a wasteful number, since it uses less digits than its factorization.

768616994478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44681952.

The product of its digits is 877879296, while the sum is 75.

The spelling of 768616994478 in words is "seven hundred sixty-eight billion, six hundred sixteen million, nine hundred ninety-four thousand, four hundred seventy-eight".