6687863116 has 36 divisors (see below), whose sum is σ = 12871387816. Its totient is φ = 3038302080.

The previous prime is 6687863093. The next prime is 6687863137. The reversal of 6687863116 is 6113687866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1761316 + ... + 1765108.

Almost surely, 2^6687863116 is an apocalyptic number.

It is an amenable number.

6687863116 is a deficient number, since it is larger than the sum of its proper divisors (6183524700).

6687863116 is a wasteful number, since it uses less digits than its factorization.

6687863116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462 (or 7449 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 6687863116 is about 81779.3562948499. The cubic root of 6687863116 is about 1884.0646097511.

The spelling of 6687863116 in words is "six billion, six hundred eighty-seven million, eight hundred sixty-three thousand, one hundred sixteen".