7686880366 has 16 divisors (see below), whose sum is σ = 12626368128. Its totient is φ = 3480748600.

The previous prime is 7686880339. The next prime is 7686880381. The reversal of 7686880366 is 6630886867.

It is a super-2 number, since 2×7686880366² (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 7686880366.

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, 658480 + ... + 670051.

It is an arithmetic number, because the mean of its divisors is an integer number (789148008).

Almost surely, 2^7686880366 is an apocalyptic number.

7686880366 is a deficient number, since it is larger than the sum of its proper divisors (4939487762).

7686880366 is a wasteful number, since it uses less digits than its factorization.

7686880366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328807.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The square root of 7686880366 is about 87674.8559508369. The cubic root of 7686880366 is about 1973.5586656099.

The spelling of 7686880366 in words is "seven billion, six hundred eighty-six million, eight hundred eighty thousand, three hundred sixty-six".