6686827875 has 384 divisors, whose sum is σ = 15990374400. Its totient is φ = 2667168000.

The previous prime is 6686827843. The next prime is 6686827891. The reversal of 6686827875 is 5787286866.

It is not a de Polignac number, because 6686827875 - 2⁵ = 6686827843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 155507604 + ... + 155507646.

It is an arithmetic number, because the mean of its divisors is an integer number (41641600).

Almost surely, 2^6686827875 is an apocalyptic number.

6686827875 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6686827875 is an abundant number, since it is smaller than the sum of its proper divisors (9303546525).

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

6686827875 is a wasteful number, since it uses less digits than its factorization.

6686827875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 102 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The square root of 6686827875 is about 81773.0265735591. The cubic root of 6686827875 is about 1883.9673907767.

The spelling of 6686827875 in words is "six billion, six hundred eighty-six million, eight hundred twenty-seven thousand, eight hundred seventy-five".