7766816676 has 12 divisors (see below), whose sum is σ = 18122572272. Its totient is φ = 2588938888.

The previous prime is 7766816671. The next prime is 7766816711. The reversal of 7766816676 is 6766186677.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (7766816671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323617350 + ... + 323617373.

It is an arithmetic number, because the mean of its divisors is an integer number (1510214356).

Almost surely, 2^7766816676 is an apocalyptic number.

It is an amenable number.

7766816676 is an abundant number, since it is smaller than the sum of its proper divisors (10355755596).

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

7766816676 is a wasteful number, since it uses less digits than its factorization.

7766816676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647234730 (or 647234728 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 60.

The square root of 7766816676 is about 88129.5448530174. The cubic root of 7766816676 is about 1980.3761381114.

The spelling of 7766816676 in words is "seven billion, seven hundred sixty-six million, eight hundred sixteen thousand, six hundred seventy-six".