7686331838055 has 160 divisors (see below), whose sum is σ = 15620538358656. Its totient is φ = 3587479289856.

The previous prime is 7686331838047. The next prime is 7686331838057. The reversal of 7686331838055 is 5508381336867.

It is a happy number.

7686331838055 is a `hidden beast` number, since 76 + 86 + 331 + 83 + 80 + 5 + 5 = 666.

It is not a de Polignac number, because 7686331838055 - 2³ = 7686331838047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7686331837983 and 7686331838001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7686331838057) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13402879 + ... + 13964591.

Almost surely, 2^{7686331838055} is an apocalyptic number.

7686331838055 is an abundant number, since it is smaller than the sum of its proper divisors (7934206520601).

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

7686331838055 is a wasteful number, since it uses less digits than its factorization.

7686331838055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561879 (or 561870 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 7686331838055 in words is "seven trillion, six hundred eighty-six billion, three hundred thirty-one million, eight hundred thirty-eight thousand, fifty-five".