6687356900 has 36 divisors (see below), whose sum is σ = 16584646848. Its totient is φ = 2292807840.

The previous prime is 6687356857. The next prime is 6687356909. The reversal of 6687356900 is 96537866.

It is a super-2 number, since 2×6687356900² = 89441484615955220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (6687356909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4775984 + ... + 4777383.

Almost surely, 2^6687356900 is an apocalyptic number.

It is an amenable number.

6687356900 is an abundant number, since it is smaller than the sum of its proper divisors (9897289948).

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

6687356900 is a wasteful number, since it uses less digits than its factorization.

6687356900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553388 (or 9553381 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 6687356900 is about 81776.2612253703. The cubic root of 6687356900 is about 1884.0170725084.

The spelling of 6687356900 in words is "six billion, six hundred eighty-seven million, three hundred fifty-six thousand, nine hundred".