7769828346666 has 32 divisors (see below), whose sum is σ = 16124049673728. Its totient is φ = 2493409720320.

The previous prime is 7769828346523. The next prime is 7769828346667. The reversal of 7769828346666 is 6666438289677.

It is a junction number, because it is equal to n+sod(n) for n = 7769828346591 and 7769828346600.

It is not an unprimeable number, because it can be changed into a prime (7769828346667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108185011 + ... + 108256806.

It is an arithmetic number, because the mean of its divisors is an integer number (503876552304).

Almost surely, 2^{7769828346666} is an apocalyptic number.

7769828346666 is an abundant number, since it is smaller than the sum of its proper divisors (8354221327062).

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

7769828346666 is a wasteful number, since it uses less digits than its factorization.

7769828346666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216442046.

The product of its digits is 5267275776, while the sum is 78.

The spelling of 7769828346666 in words is "seven trillion, seven hundred sixty-nine billion, eight hundred twenty-eight million, three hundred forty-six thousand, six hundred sixty-six".