6688134012 has 48 divisors (see below), whose sum is σ = 17852721152. Its totient is φ = 1908999360.

The previous prime is 6688133989. The next prime is 6688134073. The reversal of 6688134012 is 2104318866.

It is a super-2 number, since 2×6688134012² = 89462273124942432288, which contains 22 as substring.

It is a congruent number.

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, 46773 + ... + 124755.

Almost surely, 2^6688134012 is an apocalyptic number.

It is an amenable number.

6688134012 is an abundant number, since it is smaller than the sum of its proper divisors (11164587140).

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

6688134012 is a wasteful number, since it uses less digits than its factorization.

6688134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79018 (or 79016 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 6688134012 is about 81781.0125395865. The cubic root of 6688134012 is about 1884.0900478054.

The spelling of 6688134012 in words is "six billion, six hundred eighty-eight million, one hundred thirty-four thousand, twelve".