7681886716 has 24 divisors (see below), whose sum is σ = 15548883840. Its totient is φ = 3252570672.

The previous prime is 7681886699. The next prime is 7681886741. The reversal of 7681886716 is 6176881867.

It is a super-2 number, since 2×7681886716² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650406 + ... + 1655053.

It is an arithmetic number, because the mean of its divisors is an integer number (647870160).

Almost surely, 2^7681886716 is an apocalyptic number.

It is an amenable number.

7681886716 is an abundant number, since it is smaller than the sum of its proper divisors (7866997124).

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

7681886716 is a wasteful number, since it uses less digits than its factorization.

7681886716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305553 (or 3305551 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 58.

The square root of 7681886716 is about 87646.3730909614. The cubic root of 7681886716 is about 1973.1312101866.

The spelling of 7681886716 in words is "seven billion, six hundred eighty-one million, eight hundred eighty-six thousand, seven hundred sixteen".