78688808968 has 64 divisors (see below), whose sum is σ = 184021171200. Its totient is φ = 30645760320.

The previous prime is 78688808917. The next prime is 78688808971. The reversal of 78688808968 is 86980888687.

It is a junction number, because it is equal to n+sod(n) for n = 78688808894 and 78688808903.

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, 1606423 + ... + 1654681.

It is an arithmetic number, because the mean of its divisors is an integer number (2875330800).

Almost surely, 2^78688808968 is an apocalyptic number.

It is an amenable number.

78688808968 is an abundant number, since it is smaller than the sum of its proper divisors (105332362232).

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

78688808968 is a wasteful number, since it uses less digits than its factorization.

78688808968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50930 (or 50926 counting only the distinct ones).

The product of its (nonzero) digits is 594542592, while the sum is 76.

The spelling of 78688808968 in words is "seventy-eight billion, six hundred eighty-eight million, eight hundred eight thousand, nine hundred sixty-eight".