6686883780 has 48 divisors (see below), whose sum is σ = 18727082304. Its totient is φ = 1782806400.

The previous prime is 6686883761. The next prime is 6686883809. The reversal of 6686883780 is 873886866.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425055 + ... + 440505.

It is an arithmetic number, because the mean of its divisors is an integer number (390147548).

Almost surely, 2^6686883780 is an apocalyptic number.

6686883780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6686883780 is an abundant number, since it is smaller than the sum of its proper divisors (12040198524).

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

6686883780 is a wasteful number, since it uses less digits than its factorization.

6686883780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22676 (or 22674 counting only the distinct ones).

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

The square root of 6686883780 is about 81773.3684031666. The cubic root of 6686883780 is about 1883.9726410441.

The spelling of 6686883780 in words is "six billion, six hundred eighty-six million, eight hundred eighty-three thousand, seven hundred eighty".