7678888768 has 28 divisors (see below), whose sum is σ = 15338726752. Its totient is φ = 3814012800.

The previous prime is 7678888753. The next prime is 7678888823. The reversal of 7678888768 is 8678888767.

It is a super-2 number, since 2×7678888768² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7678888768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387630 + ... + 406957.

Almost surely, 2^7678888768 is an apocalyptic number.

It is an amenable number.

7678888768 is a deficient number, since it is larger than the sum of its proper divisors (7659837984).

7678888768 is a wasteful number, since it uses less digits than its factorization.

7678888768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794750 (or 794740 counting only the distinct ones).

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

The square root of 7678888768 is about 87629.2689002938. The cubic root of 7678888768 is about 1972.8744974517.

Subtracting 7678888768 from its reverse (8678888767), we obtain a palindrome (999999999).

The spelling of 7678888768 in words is "seven billion, six hundred seventy-eight million, eight hundred eighty-eight thousand, seven hundred sixty-eight".