7768116544 has 84 divisors (see below), whose sum is σ = 16508878336. Its totient is φ = 3625703424.

The previous prime is 7768116529. The next prime is 7768116547. The reversal of 7768116544 is 4456118677.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768116547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2347339 + ... + 2350645.

Almost surely, 2^7768116544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7768116544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8254439168).

7768116544 is an abundant number, since it is smaller than the sum of its proper divisors (8740761792).

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

7768116544 is a wasteful number, since it uses less digits than its factorization.

7768116544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480 (or 3453 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 7768116544 is about 88136.9193017319. The cubic root of 7768116544 is about 1980.4866116847.

The spelling of 7768116544 in words is "seven billion, seven hundred sixty-eight million, one hundred sixteen thousand, five hundred forty-four".