6687508860 has 72 divisors (see below), whose sum is σ = 20316494016. Its totient is φ = 1780606080.

The previous prime is 6687508843. The next prime is 6687508879. The reversal of 6687508860 is 688057866.

It is a junction number, because it is equal to n+sod(n) for n = 6687508797 and 6687508806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90877 + ... + 147083.

It is an arithmetic number, because the mean of its divisors is an integer number (282173528).

Almost surely, 2^6687508860 is an apocalyptic number.

6687508860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6687508860 is an abundant number, since it is smaller than the sum of its proper divisors (13628985156).

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

6687508860 is a wasteful number, since it uses less digits than its factorization.

6687508860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56883 (or 56878 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The square root of 6687508860 is about 81777.1903405834. The cubic root of 6687508860 is about 1884.0313428732.

The spelling of 6687508860 in words is "six billion, six hundred eighty-seven million, five hundred eight thousand, eight hundred sixty".