7768888678 has 16 divisors (see below), whose sum is σ = 11694340800. Its totient is φ = 3870792576.

The previous prime is 7768888669. The next prime is 7768888711. The reversal of 7768888678 is 8768888677.

It is a self number, because there is not a number n which added to its sum of digits gives 7768888678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133550 + ... + 1140382.

It is an arithmetic number, because the mean of its divisors is an integer number (730896300).

Almost surely, 2^7768888678 is an apocalyptic number.

7768888678 is a deficient number, since it is larger than the sum of its proper divisors (3925452122).

7768888678 is a wasteful number, since it uses less digits than its factorization.

7768888678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751.

The product of its digits is 404619264, while the sum is 73.

The square root of 7768888678 is about 88141.2995025601. The cubic root of 7768888678 is about 1980.5522282074.

Subtracting 7768888678 from its reverse (8768888677), we obtain a palindrome (999999999).

The spelling of 7768888678 in words is "seven billion, seven hundred sixty-eight million, eight hundred eighty-eight thousand, six hundred seventy-eight".