7688806386 has 16 divisors (see below), whose sum is σ = 15793224384. Its totient is φ = 2493666864.

The previous prime is 7688806369. The next prime is 7688806397. The reversal of 7688806386 is 6836088867.

It is a Curzon 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, 17316910 + ... + 17317353.

It is an arithmetic number, because the mean of its divisors is an integer number (987076524).

Almost surely, 2^7688806386 is an apocalyptic number.

7688806386 is an abundant number, since it is smaller than the sum of its proper divisors (8104417998).

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

7688806386 is a wasteful number, since it uses less digits than its factorization.

7688806386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34634305.

The product of its (nonzero) digits is 18579456, while the sum is 60.

The square root of 7688806386 is about 87685.8391417907. The cubic root of 7688806386 is about 1973.7234830588.

The spelling of 7688806386 in words is "seven billion, six hundred eighty-eight million, eight hundred six thousand, three hundred eighty-six".